98971 + Interview Questions in Primary School in Math

1.	Verify that -(- X)= X for -21/13
Answer» ANSWER: YES.. the above QUESTION is CORRECT

1.

Verify that -(- X)= X for -21/13

Answer»

ANSWER:

YES.. the above QUESTION is CORRECT

Discussion

2.	15×{(-24)+(-4)}×10using associative property step by stepplease help fast..
Answer» Answer: 15x(-24)= -360+(-4)= -364x10= -3640 it is your answer HOPE it HELPS you

2.

15×{(-24)+(-4)}×10using associative property step by stepplease help fast..

Answer»

Answer:

15x(-24)=

-360+(-4)=

-364x10=

-3640

it is your answer

HOPE it HELPS you

Discussion

3.	Let x = Then find a) b) value of x
Answer» Step-by-step EXPLANATION: i HOPE you LIKE my SOLUTION

3.

Let x = Then find a) b) value of x

Answer»

Step-by-step EXPLANATION:

i HOPE you LIKE my SOLUTION

Discussion

4.	Mark the following integers on a number line first question is -7
Answer» ANSWER: SEE the ATTACHED FILE.........

4.

Mark the following integers on a number line first question is -7

Answer»

ANSWER:

SEE the ATTACHED FILE.........

Discussion

5.	How much is one quarter of 20
Answer» Answer: 5 Step-by-step explanation: 1/4 *20=5 PLEASE MARK BRAINIEST

5.

How much is one quarter of 20

Answer»

Answer:

5

Step-by-step explanation:

1/4 *20=5

PLEASE MARK BRAINIEST

Discussion

6.	Find the cube roots of the following numbers by successive subtraction of numbers 1, 7, 19, 37,61,91,127,169,217,271,331,397___(I)27 (ii) 125 (iii) 512 (iv) 1728
Answer» 1. Find the cube roots of the FOLLOWING numbers by successive subtraction of numbers: 1, 7, 19, 37, 61, 91, 127, 169, 217, 271, 331, 397, … (i) 64 (ii) 512 (iii) 1728 Solution: (i) 64 Let’s perform subtraction 64 – 1 = 63 63 – 7 = 56 56 – 19 =37 37 – 37 = 0 Subtraction is performed 4 times. ∴ Cube ROOT of 64 is 4. (ii) 512 Let’s perform subtraction 512 – 1 = 511 511 – 7 = 504 504 – 19 = 485 485 – 37 = 448 448 – 61 = 387 387 – 91 = 296 296 – 127 = 169 169 – 169 = 0 Subtraction is performed 8 times. ∴ Cube root of 512 is 8. (iii) 1728 Let’s perform subtraction 1728 – 1 = 1727 1727 – 7 = 1720 1720 – 19 = 1701 1701 – 37 = 1664 1664 – 91 = 1512 1512 – 127 = 1385 1385 – 169 = 1216 1216 – 217 = 999 999 – 271 = 728 728 – 331 = 397 397 – 397 = 0 Subtraction is performed 12 times. ∴ Cube root of 1728 is 12.

6.

Find the cube roots of the following numbers by successive subtraction of numbers 1, 7, 19, 37,61,91,127,169,217,271,331,397___(I)27 (ii) 125 (iii) 512 (iv) 1728

Answer»

1. Find the cube roots of the FOLLOWING numbers by successive subtraction of numbers:

1, 7, 19, 37, 61, 91, 127, 169, 217, 271, 331, 397, …

(i) 64

(ii) 512

(iii) 1728

Solution:

(i) 64

Let’s perform subtraction

64 – 1 = 63

63 – 7 = 56

56 – 19 =37

37 – 37 = 0

Subtraction is performed 4 times.

∴ Cube ROOT of 64 is 4.

(ii) 512

Let’s perform subtraction

512 – 1 = 511

511 – 7 = 504

504 – 19 = 485

485 – 37 = 448

448 – 61 = 387

387 – 91 = 296

296 – 127 = 169

169 – 169 = 0

Subtraction is performed 8 times.

∴ Cube root of 512 is 8.

(iii) 1728

Let’s perform subtraction

1728 – 1 = 1727

1727 – 7 = 1720

1720 – 19 = 1701

1701 – 37 = 1664

1664 – 91 = 1512

1512 – 127 = 1385

1385 – 169 = 1216

1216 – 217 = 999

999 – 271 = 728

728 – 331 = 397

397 – 397 = 0

Subtraction is performed 12 times.

∴ Cube root of 1728 is 12.

Discussion

7.	Find many thousands make a. (1) lakh
Answer» Answer: 100thousand MAKE from 1 LAKH

7.

Find many thousands make a. (1) lakh

Answer»

Answer:

100thousand MAKE from 1 LAKH

Discussion

8.	Represent the following integers on number line :-7 , 8 , 0 ,-5 , 3
Answer» ANSWER: See the attachment.. HOPE it helps...Pls FOLLOW me...Mark as BRAINLIEST

8.

Represent the following integers on number line :-7 , 8 , 0 ,-5 , 3

Answer»

ANSWER:

See the attachment..

HOPE it helps...Pls FOLLOW me...Mark as BRAINLIEST

Discussion

9.	Find the value of 3 + 2 (8 – 3)
Answer» ⠀⠀ıllıllı uoᴉʇnloS ıllıllı $\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$ 3 + 2 (8 - 3) = 3 + 2 (5) = 3 + 2 × 5 = 3 + 10 = 13 $\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$

9.

Find the value of 3 + 2 (8 – 3)

Answer»

⠀⠀ıllıllı uoᴉʇnloS ıllıllı

$\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$

3 + 2 (8 - 3)

= 3 + 2 (5)

= 3 + 2 × 5

= 3 + 10

= 13

$\setlength{\unitlength}{1.0 cm}}\begin{picture}(12,4)\thicklines\put(1,1){\line(1,0){6.5}}\put(1,1.1){\line(1,0){6.5}}\end{picture}$

Discussion

10.	Expanded form in 42491
Answer» ANSWER: *HEY* *MATE*! 40000+2000+400+90+1 hope it HELPS

10.

Expanded form in 42491

Answer»

ANSWER:

HEY MATE!

40000+2000+400+90+1

hope it HELPS

Discussion

11.	Round off the number 450 to nearest 10s 100s 1000s
Answer» Answer: Nearest 10 = 450, Nearest 100 = 500, Nearest 1000 = 000

11.

Round off the number 450 to nearest 10s 100s 1000s

Answer»

Answer:

Nearest 10 = 450, Nearest 100 = 500, Nearest 1000 = 000

Discussion

12.	during a campaign and army losses 1 by 10 of its member in battle and 1 by 5 by 6 what fraction service
Answer» ANSWER: Step-by-step EXPLANATION:

12.

during a campaign and army losses 1 by 10 of its member in battle and 1 by 5 by 6 what fraction service

Answer»

ANSWER:

Step-by-step EXPLANATION:

Discussion

13.	4. A number consists of two-digits. The digit at the units place is 3 times thedigit at the tens place. If 36 is added to the number, the digits are reversed.Find the number.
Answer» ANSWER: Original number = 26 GIVEN: The digit at the units place is 3 TIMES the digit at the tens place. If 36 is added to the number, the DIGITS are reversed. TO FIND: Orginal number SOLUTION: Let the digit at tens place be x. Let the digit at unit place be y. ORIGINAL NUMBER = 10x+y According to the question: CASE 1 $\implies \: y = 3 \times x \\ \implies \: y = 3x \: \: \: \: ....(i)$ CASE 2 REVERSED NUMBER = 10y+x $\implies \: 10x + y + 36 = 10y + x \\ \implies 10x - x + y - 10y = - 36 \\ \implies \: 9x - 9y = - 36 \\ \implies \: 9(x - y) = - 36 \\ \implies \: x - y = \frac{ - 36}{9} \\ \implies \: x - y = - 4 \\ \\ putting \: y = 3x \: from \: eq(i) \\ \implies \: x - 3x = - 4 \\ \implies \: - 2x = - 4 \\ \implies \: x = 2 \\ \\ \implies \: y = 3x \\ \implies \: y = 3 \times 2 \\ \implies \: y = 6$ So original number = 10x+y = 10*2 + 6 =26

13.

4. A number consists of two-digits. The digit at the units place is 3 times thedigit at the tens place. If 36 is added to the number, the digits are reversed.Find the number.

Answer»

GIVEN:

The digit at the units place is 3 TIMES the digit at the tens place.
If 36 is added to the number, the DIGITS are reversed.

SOLUTION:

Let the digit at tens place be x.
Let the digit at unit place be y.

ORIGINAL NUMBER = 10x+y

According to the question:

CASE 1

$\implies \: y = 3 \times x \\ \implies \: y = 3x \: \: \: \: ....(i)$

CASE 2

REVERSED NUMBER = 10y+x

$\implies \: 10x + y + 36 = 10y + x \\ \implies 10x - x + y - 10y = - 36 \\ \implies \: 9x - 9y = - 36 \\ \implies \: 9(x - y) = - 36 \\ \implies \: x - y = \frac{ - 36}{9} \\ \implies \: x - y = - 4 \\ \\ putting \: y = 3x \: from \: eq(i) \\ \implies \: x - 3x = - 4 \\ \implies \: - 2x = - 4 \\ \implies \: x = 2 \\ \\ \implies \: y = 3x \\ \implies \: y = 3 \times 2 \\ \implies \: y = 6$

So original number = 10x+y

= 10*2 + 6

=26

Discussion

14.	Write the coefficient of 8 in a²- 8ax +a
Answer» ANSWER: _ax is the COEFFICIENT in the FOLLOWING POLYNOMIAL.

14.

Write the coefficient of 8 in a²- 8ax +a

Answer»

ANSWER:

_ax is the COEFFICIENT in the FOLLOWING POLYNOMIAL.

Discussion

15.	What is the algebra expression for the following?A number multiplied by eightA number decreased by twoA number divided by fourSix more than a numberThanks!
Answer» Answer: (1) 8X (2) (y - 2) (3) m/4 (4) (t + 4) Step-by-step explanation: To find the algebraic expressions for given conditions, we ASSUME a variable and SATISFY the given conditions. Let's head to the questions. (1) A NUMBER multiplied by eight. Let the number be 'x' On multiplying the assumed number with 8 Therefore, we will get, Algebraic expression = 8x (2) A number decreased by two. Let the number be 'y' Decrease means substraction. After subtracting 2 from assumed number, Therefore, we will get, Algebraic expression = (y - 2) (3) A number divided by four. Let the number be 'm' On dividing the assumed number with 4. Therefore, we will get, Algebraic expression = m/4 (4) Six more than a number Let the number be 't' On adding 4 to the assumed number. Therefore, we will get, Algebraic expression = (t + 4)

15.

What is the algebra expression for the following?A number multiplied by eightA number decreased by twoA number divided by fourSix more than a numberThanks!

Answer»

Answer:

(1) 8X

(2) (y - 2)

(3) m/4

(4) (t + 4)

Step-by-step explanation:

To find the algebraic expressions for given conditions, we ASSUME a variable and SATISFY the given conditions.

Let's head to the questions.

(1) A NUMBER multiplied by eight.

Let the number be 'x'

On multiplying the assumed number with 8

Therefore, we will get,

Algebraic expression = 8x

(2) A number decreased by two.

Let the number be 'y'

Decrease means substraction.

After subtracting 2 from assumed number,

Therefore, we will get,

Algebraic expression = (y - 2)

(3) A number divided by four.

Let the number be 'm'

On dividing the assumed number with 4.

Therefore, we will get,

Algebraic expression = m/4

(4) Six more than a number

Let the number be 't'

On adding 4 to the assumed number.

Therefore, we will get,

Algebraic expression = (t + 4)

Discussion

16.	-3/4,5/6,7/-8and2/3in ascending order in step by step
Answer» Answer: -7/8,-3/4,2/3,5/6 Step-by-step explanation: we will multiply the denominator by their consecutive MULTIPLE that is 24 so then the no will become -21/24,16/24,20/24,-18/24 so KEEP the no in ascending order and carry on!!

16.

-3/4,5/6,7/-8and2/3in ascending order in step by step

Answer»

Answer:

-7/8,-3/4,2/3,5/6

Step-by-step explanation:

we will multiply the denominator by their consecutive MULTIPLE that is 24 so then the no will become -21/24,16/24,20/24,-18/24 so KEEP the no in ascending order and carry on!!

Discussion

17.	एक दुकानदार ने 300 पेंसिल ₹ 120 की खरीदी. वह एकपेंसिल कितने की बेचे कि उसे 15% का लाभ हो ?(A) ₹0.46(B) ₹0.76(C) ₹0.86(D) ₹0-40
Answer» Answer: (A) ₹0.46 Step-by-step explanation: 300 pencils for ₹=₹120 1 PENCIL for ₹ = 120/300 =2/5 CP=2/5 profit%= 15% SP= 100+15%/100 ×2/5 =115/100 ×2/5 =46/100 =0.46 :)

17.

एक दुकानदार ने 300 पेंसिल ₹ 120 की खरीदी. वह एकपेंसिल कितने की बेचे कि उसे 15% का लाभ हो ?(A) ₹0.46(B) ₹0.76(C) ₹0.86(D) ₹0-40

Answer»

Answer:

(A) ₹0.46

Step-by-step explanation:

300 pencils for ₹=₹120

1 PENCIL for ₹ = 120/300

=2/5

CP=2/5

profit%= 15%

SP= 100+15%/100 ×2/5

=115/100 ×2/5

=46/100

=0.46

:)

Discussion

18.	Find the difference of the place value and face value of the digit 5 in 715432
Answer» ANSWER: Place value of 5 in 715432 = 5000 Face value of 5 anywhere = 5 Difference = 5000 - 5 = 4995 Ans. 4995

18.

Find the difference of the place value and face value of the digit 5 in 715432

Answer»

ANSWER:

Place value of 5 in 715432 = 5000

Face value of 5 anywhere = 5

Difference = 5000 - 5 = 4995

Ans. 4995

Discussion

19.	4. A number consists of two-digits. The digit at the units place is 3 times thedigit at the tens place. If 36 is added to the number, the digits are reversed.Find the number
Answer» Answer: Number = 26 Step-by-step explanation: Solution : Let unit place = x Tenth place = y Number =10y +x According to the question, x = 3y - - - - - - - - (1) When 36 is added to the original number 10y +x The terms GET reversed (10y +x) +36 =10x +y 10y +x - 10x - y +36=0 9y - 9x +36 =0 9x - 9y =36 9(x- y) =36 (x-y) =36/9 x - y = 4 - - - - - - - - - - (2) Now PUTTING the values of x from equation (1) in (2) 3y - y = 4 2y = 4 y = 4/2 y = 2 Putting the value of y in equation (1) x = 3y x = 3 ×2 x = 6 Hence the original number is Number =10y +x = 10 ×2 +6 = 20+ 6 = 26 Ans.

19.

4. A number consists of two-digits. The digit at the units place is 3 times thedigit at the tens place. If 36 is added to the number, the digits are reversed.Find the number

Answer»

Answer:

Number = 26

Step-by-step explanation:

Solution :

Let unit place = x

Tenth place = y

Number =10y +x

According to the question,

x = 3y - - - - - - - - (1)

When 36 is added to the original number 10y +x

The terms GET reversed

(10y +x) +36 =10x +y

10y +x - 10x - y +36=0

9y - 9x +36 =0

9x - 9y =36

9(x- y) =36

(x-y) =36/9

x - y = 4 - - - - - - - - - - (2)

Now PUTTING the values of x from equation (1) in (2)

3y - y = 4

2y = 4

y = 4/2

y = 2

Putting the value of y in equation (1)

x = 3y

x = 3 ×2

x = 6

Hence the original number is

Number =10y +x

= 10 ×2 +6

= 20+ 6

= 26 Ans.

Discussion

20.	Ajay makes a cubical box of plasticine of side 5cm.Find the volume of the box
Answer» Step-by-step EXPLANATION: VOLUME = side^3 = 5^3 = 125 cm^3

20.

Ajay makes a cubical box of plasticine of side 5cm.Find the volume of the box

Answer»

Step-by-step EXPLANATION:

VOLUME = side^3

= 5^3

= 125 cm^3

Discussion

21.	Which temperature is higher?(a) -50C and 50C (b) -300C and 00C (c)-140C and 250C
Answer» $\huge \mathfrak \pink{Answer}$ a. -50 and 50 C ______________________________

21.

Which temperature is higher?(a) -50C and 50C (b) -300C and 00C (c)-140C and 250C

Answer»

$\huge \mathfrak \pink{Answer}$

a. -50 and 50 C

______________________________

Discussion

22.	Is the pair of 110 degrees angle and 85 degrees angle a linear pair
Answer» Answer: No Step-by-step EXPLANATION: A LINEAR pair MEANS that the sum of the angles should be 180° and they should be adjacent. In this CASE their sum is 195°. Therefore, they cannot be a linear pair

22.

Is the pair of 110 degrees angle and 85 degrees angle a linear pair

Answer»

Answer:

No

Step-by-step EXPLANATION:

A LINEAR pair MEANS that the sum of the angles should be 180° and they should be adjacent.

In this CASE their sum is 195°.

Therefore, they cannot be a linear pair

Discussion

23.	Solve without calculating the cubes and state the property to use. -i- (-12)³+(7)³+(5)³ ii- (28)³+(-15)³+(13)³
Answer» Answer: i)-1260 ii)16380 Step-by-step explanation: LET's MOVE to some basic concepts of expansion, we have learnt that if a+b+c=0, then a^3+b^3+c^3=3abc. in (i), let a=-12, b=7, c=5 a+b+c =0 in this CASE, and hence, (-12)^3+(7)^3+(5)^3=3(-12)(7)(5)=-1260. in (ii), let a=28 b=-15, c=-13 a+b+c=0 in this case, and hence, (28)^3+(-15)^3+(-13)^3=3(-13)(-15)(28)=16,380. Please Mark as Brainliest

23.

Solve without calculating the cubes and state the property to use. -i- (-12)³+(7)³+(5)³ ii- (28)³+(-15)³+(13)³

Answer»

Answer:

i)-1260 ii)16380

Step-by-step explanation:

LET's MOVE to some basic concepts of expansion,

we have learnt that if a+b+c=0, then a^3+b^3+c^3=3abc.

in (i),

let a=-12,

b=7,

c=5

a+b+c =0 in this CASE,

and hence, (-12)^3+(7)^3+(5)^3=3(-12)(7)(5)=-1260.

in (ii),

let a=28

b=-15,

c=-13

a+b+c=0 in this case,

and hence, (28)^3+(-15)^3+(-13)^3=3(-13)(-15)(28)=16,380.

Please Mark as Brainliest

Discussion

24.	Solve for x :a. 7/6=x/36b. 10/8=4/xc. x/60=9/10
Answer» ☯ To FinD : We have to find the VALUE of x in all the cases. $\rule{150}{2}$ ☯ SOLUTION : QUESTION (1) : $\sf{ \frac{7}{6} = \frac{x}{36}}$ $\sf{\dashrightarrow \frac{7}{6} = \frac{x}{36}}$ ➳ By cross multiplication $\sf{\dashrightarrow x = \frac{7 \times \cancel{36}}{\cancel{6}}} \\ \\ \sf{\dashrightarrow x = 7 \times 6} \\ \\ \sf{\dashrightarrow x = 42} \\ \\ \Large{\implies{\boxed{\boxed{\sf{x = 42}}}}}$ $\rule{150}{2}$ Question (2) : $\sf{ \frac{10}{8} = \frac{4}{x}}$ $\sf{\dashrightarrow \frac{10}{8} = \frac{4}{x}}$ ➳ By CROSS multiplication $\sf{\dashrightarrow x = \frac{8 \times \cancel{4}}{\cancel{10}}} \\ \\ \sf{\dashrightarrow x = \frac{8 \times 2}{5}} \\ \\ \sf{\dashrightarrow x = \frac{16}{5}} \\ \\ \sf{\dashrightarrow x = 3.2} \\ \\ \Large{\implies{\boxed{\boxed{\sf{x = 3.2}}}}}$ $\rule{150}{2}$ Question (3) : $\sf{\dashrightarrow \frac{x}{60} = \frac{9}{10}}$ $\sf{\dashrightarrow \frac{x}{60} = \frac{9}{10}}$ ➳ By cross multiplication $\sf{\dashrightarrow x = \frac{9 \times \cancel{60}}{\cancel{10}}} \\ \\ \sf{\dashrightarrow x = 9 \times 6} \\ \\ \sf{\dashrightarrow x = 54} \\ \\ \Large{\implies{\boxed{\boxed{\sf{x = 54}}}}}$

24.

Solve for x :a. 7/6=x/36b. 10/8=4/xc. x/60=9/10

Answer»

☯ To FinD :

We have to find the VALUE of x in all the cases.

$\rule{150}{2}$

☯ SOLUTION :

QUESTION (1) : $\sf{ \frac{7}{6} = \frac{x}{36}}$

$\sf{\dashrightarrow \frac{7}{6} = \frac{x}{36}}$

➳ By cross multiplication

$\sf{\dashrightarrow x = \frac{7 \times \cancel{36}}{\cancel{6}}} \\ \\ \sf{\dashrightarrow x = 7 \times 6} \\ \\ \sf{\dashrightarrow x = 42} \\ \\ \Large{\implies{\boxed{\boxed{\sf{x = 42}}}}}$

$\rule{150}{2}$

Question (2) : $\sf{ \frac{10}{8} = \frac{4}{x}}$

$\sf{\dashrightarrow \frac{10}{8} = \frac{4}{x}}$

➳ By CROSS multiplication

$\sf{\dashrightarrow x = \frac{8 \times \cancel{4}}{\cancel{10}}} \\ \\ \sf{\dashrightarrow x = \frac{8 \times 2}{5}} \\ \\ \sf{\dashrightarrow x = \frac{16}{5}} \\ \\ \sf{\dashrightarrow x = 3.2} \\ \\ \Large{\implies{\boxed{\boxed{\sf{x = 3.2}}}}}$

$\rule{150}{2}$

Question (3) : $\sf{\dashrightarrow \frac{x}{60} = \frac{9}{10}}$

$\sf{\dashrightarrow \frac{x}{60} = \frac{9}{10}}$

➳ By cross multiplication

$\sf{\dashrightarrow x = \frac{9 \times \cancel{60}}{\cancel{10}}} \\ \\ \sf{\dashrightarrow x = 9 \times 6} \\ \\ \sf{\dashrightarrow x = 54} \\ \\ \Large{\implies{\boxed{\boxed{\sf{x = 54}}}}}$

Discussion

25.	Write the coefficient of 5x² in 5x² -5x
Answer» ANSWER: COFFECENT= 5_'/$'*/□♢□▪♢<☆7•<《♡

25.

Write the coefficient of 5x² in 5x² -5x

Answer»

ANSWER:

COFFECENT= 5_'/$'*/□♢□▪♢<☆7•<《♡

Discussion

26.	A) 1/3 of 3/4Multiply the fraction with the help of a diagram.I am also sharing a solved question for your convenience.
Answer» ANSWER: 1/4 is answer REQUIRED by QUESTION

26.

A) 1/3 of 3/4Multiply the fraction with the help of a diagram.I am also sharing a solved question for your convenience.

Answer»

ANSWER:

1/4 is answer REQUIRED by QUESTION

Discussion

27.	Write each of the following in expandad form -9,10,10,510
Answer» Answer: -9 10 + 0 10 + 0 500 + 10 + 0 hope it helps you

27.

Write each of the following in expandad form -9,10,10,510

Answer»

Answer:

-9

10 + 0

500 + 10 + 0

hope it helps you

Discussion

28.	Represent -3/5 on number line with explanation
Answer» Answer: Step-by-step explanation: Explanation:- ⇒ Since the number LINE represents all real numbers and since zero is a real number, there is a POINT on the line that represents zero (CALLED the origin). ⇒ Then the points on the line to the RIGHT of the origin represent positive numbers while the points on the line to the LEFT of the origin represent negative numbers.

28.

Represent -3/5 on number line with explanation

Answer»

Answer:

Step-by-step explanation:

Explanation:-

⇒ Since the number LINE represents all real numbers and since zero is a real number, there is a POINT on the line that represents zero (CALLED the origin).

⇒ Then the points on the line to the RIGHT of the origin represent positive numbers while the points on the line to the LEFT of the origin represent negative numbers.

Discussion

29.	(-5/16)+(0)+9/7+1/8+(-14/56)+2/7solution
Answer» Answer: 2.26 Step-by-step EXPLANATION: (-5/16)+(0)+9/7+1/8+(-14/56)+2/7 -5/16 = -0.3125 (-14/56)=-0.25 0.3125+0+9/7+1/8+0.25+2/7=2.26

29.

(-5/16)+(0)+9/7+1/8+(-14/56)+2/7solution

Answer»

Answer:

2.26

Step-by-step EXPLANATION:

(-5/16)+(0)+9/7+1/8+(-14/56)+2/7

-5/16 = -0.3125

(-14/56)=-0.25

0.3125+0+9/7+1/8+0.25+2/7=2.26

Discussion

30.	How many years are in 936 months find out ?
Answer» Answer: 78 Years Step-by-step EXPLANATION: NUMBER of Years= $\frac{Number of Months}{12}$ = $\frac{936}{12}$ =78 Please MARK me as BRAINLIEST.

30.

How many years are in 936 months find out ?

Answer»

Answer:

78 Years

Step-by-step EXPLANATION:

NUMBER of Years= $\frac{Number of Months}{12}$ = $\frac{936}{12}$ =78

Please MARK me as BRAINLIEST.

Discussion

31.	Write any five integers greater than -15.
Answer» Answer: -14,-13,-12,-11,-10 hope it helps

31.

Write any five integers greater than -15.

Answer»

Answer:

-14,-13,-12,-11,-10

hope it helps

Discussion

32.	Is the pair of 118 angle and85° angle a linear pour
Answer» ANSWER: *Linear* *PAIR* = *sum* of *angles* *180* *118+85= 203* *203≠180 Hence, this* is *not* *linear* *pair* Step-by-step EXPLANATION: ~*FOLLOW* me *please* *and* *Mark* as *brainliest* *I'm* *Tannu* *Rana* ♥

32.

Is the pair of 118 angle and85° angle a linear pour

Answer»

ANSWER:

Linear PAIR = sum of angles 180

118+85= 203

203≠180

Hence, this is not linear pair

Step-by-step EXPLANATION:

~FOLLOW me please and Mark as brainliest I'm Tannu Rana ♥

Discussion

33.	If(a+1/a)^2=3 then show that a^3+1/a^3=0
Answer» Step-by-step EXPLANATION: ${(a + \frac{1}{a} )}^{2} = 3 \\ \\ {a}^{3} + \frac{1}{ {a}^{3} } \\ = {(a + \frac{1}{a} )}( {a}^{2} - a \times \frac{1}{a} + \frac{1}{ {a}^{2} } ) \\ = \sqrt{3} \times ((a + \frac{1}{a} ) ^{2} - 2 \times a \times \frac{1}{a} - 1) \\ = \sqrt{3} \times (3 - 3) \\ = \sqrt{3} \times 0 \\ = 0$ proved. please MARK as BRAINLIEST

33.

If(a+1/a)^2=3 then show that a^3+1/a^3=0

Answer»

Step-by-step EXPLANATION:

${(a + \frac{1}{a} )}^{2} = 3 \\ \\ {a}^{3} + \frac{1}{ {a}^{3} } \\ = {(a + \frac{1}{a} )}( {a}^{2} - a \times \frac{1}{a} + \frac{1}{ {a}^{2} } ) \\ = \sqrt{3} \times ((a + \frac{1}{a} ) ^{2} - 2 \times a \times \frac{1}{a} - 1) \\ = \sqrt{3} \times (3 - 3) \\ = \sqrt{3} \times 0 \\ = 0$

proved.

please MARK as BRAINLIEST

Discussion

34.	Solve for x if y = - 10
Answer» ANSWER: is a SOLUTION of your PROBLEM

34.

Solve for x if y = - 10

Answer»

ANSWER:

is a SOLUTION of your PROBLEM

Discussion

35.	(3/2)is a fraction of 12000
Answer» Step-by-step explanation: 3/2 *12000. = 18000 18000 is the ANSWER.

35.

(3/2)is a fraction of 12000

Answer»

Step-by-step explanation:

3/2 *12000. = 18000

18000 is the ANSWER.

Discussion

36.	Arrange in descending order:35,75,-23 ,0,-12 , -9,41
Answer» Answer: 75 > 41 > 35 > 0 > -9 > -12 > -23

36.

Arrange in descending order:35,75,-23 ,0,-12 , -9,41

Answer»

Answer:

75 > 41 > 35 > 0 > -9 > -12 > -23

Discussion

37.	Write the following in words-5,10,03,604
Answer» Answer: 5 - five 10 - TEN 03 - zero three 604 - six HUNDRED four Step-by-step explanation: 5 - five 10 - ten 03 - zero three 604 - six hundred four

37.

Write the following in words-5,10,03,604

Answer»

Answer:

5 - five

10 - TEN

03 - zero three

604 - six HUNDRED four

Step-by-step explanation:

5 - five

10 - ten

03 - zero three

604 - six hundred four

Discussion

38.	Convert 289 upon 13 rational number into decimal form.Pls experts solve this. Pls pls.
Answer» 289/13=22.230.............................

38.

Convert 289 upon 13 rational number into decimal form.Pls experts solve this. Pls pls.

Answer»

289/13=22.230.............................

Discussion

39.	Three rational number between minus 7 and minus 3
Answer» ANSWER: -5 -4 -4.1 Step-by-step EXPLANATION: MARK me brainnest zzzz

39.

Three rational number between minus 7 and minus 3

Answer»

ANSWER:

-5

-4

-4.1

Step-by-step EXPLANATION:

MARK me brainnest

zzzz

Discussion

40.	If 2+2=4 then is 727+72=799?
Answer» Answer: yes because it is basic CALCULATION and it's ANS is RIGHTLY WRITTEN

40.

If 2+2=4 then is 727+72=799?

Answer»

Answer:

yes because it is basic CALCULATION and it's ANS is RIGHTLY WRITTEN

Discussion

41.	in given figure find distance in kilometres where ab is 549 ,bc is 625 km ,ad 601km and dc is 550km . from c to a through b B.from a to d
Answer» Answer: 5241 KM and 5328 km Step-by-step EXPLANATION:

41.

in given figure find distance in kilometres where ab is 549 ,bc is 625 km ,ad 601km and dc is 550km . from c to a through b B.from a to d

Answer»

Answer:

5241 KM and 5328 km

Step-by-step EXPLANATION:

Discussion

42.	Write numeral for each number fifty-six thousand two hundred ninety-two
Answer» ANSWER: Step-by-step explanation:56,292 Please MARK me as the BRAINLIST answer

42.

Write numeral for each number fifty-six thousand two hundred ninety-two

Answer»

ANSWER:

Step-by-step explanation:56,292

Please MARK me as the BRAINLIST answer

Discussion

43.	How many Garlands can be made by 648flowers if is garland is made by 24 flowers
Answer» Answer: 27 GARLAND Step-by-step explanation: 648÷24 = 27 so 27 garland can be DONE in 648 FLOWERS

43.

How many Garlands can be made by 648flowers if is garland is made by 24 flowers

Answer»

Answer:

27 GARLAND

Step-by-step explanation:

648÷24

= 27

so 27 garland can be DONE in 648 FLOWERS

Discussion

44.	Find the smallest number by which each of the following numbers must be multiplied so that the product is a perfect cube(i) 32(ii) 243 (iii) 432 G ) 392 ) 3087 (vi) 8575
Answer» Answer: (I) 2 (II) 3 (III) 4 (IV) 7 (v) 3 (vi) 5 Explanation: Do prime FACTORIZATION and form the pair of 3 same factors if a NUMBER is left then multiply the same number to make it a triplet and that number is the answer of the question.

44.

Find the smallest number by which each of the following numbers must be multiplied so that the product is a perfect cube(i) 32(ii) 243 (iii) 432 G ) 392 ) 3087 (vi) 8575

Answer»

Answer:

(I) 2

(II) 3

(III) 4

(IV) 7

(v) 3

(vi) 5

Explanation:

Do prime FACTORIZATION and form the pair of 3 same factors if a NUMBER is left then multiply the same number to make it a triplet and that number is the answer of the question.

Discussion

45.	Compare between (x+1)/(y+1)=4/5 and (x-5)/(y-5)=1/2
Answer» ANSWER: I HOPE you UNDERSTAND my answer by above PIC

45.

Compare between (x+1)/(y+1)=4/5 and (x-5)/(y-5)=1/2

Answer»

ANSWER:

I HOPE you UNDERSTAND my answer by above PIC

Discussion

46.	Arrange the following integers in increasing order:5,-9,7,0,-3,-12,-100,-16.7.3
Answer» Answer: *INCREASING* *order of the* *given* *integers* *are: -100,-16.73,-12,-9,-3,0,5,7 Hope* it *helps* *you*.

46.

Arrange the following integers in increasing order:5,-9,7,0,-3,-12,-100,-16.7.3

Answer»

Answer:

INCREASING order of the given integers are:

-100,-16.73,-12,-9,-3,0,5,7

Hope it helps you.

Discussion

47.	Express a debt of $50 as an integer. 50 OR-50
Answer» ANSWER: - 50 Step-by-step EXPLANATION: DEBT is negative. Hope it HELPS!!

47.

Express a debt of $50 as an integer. 50 OR-50

Answer»

ANSWER:

- 50

Step-by-step EXPLANATION:

DEBT is negative.

Hope it HELPS!!

Discussion

48.	Write the following in words -19,09,09,900
Answer» Answer: NINETEEN CRORES NINE lakh nine THOUSAND nine hundred

48.

Write the following in words -19,09,09,900

Answer»

Answer:

NINETEEN CRORES NINE lakh nine THOUSAND nine hundred

Discussion

49.	Hi so today this question is very mind ful the question is tell the largest prime number
Answer» Step-by-step explanation: 9999999999999999999999999

49.

Hi so today this question is very mind ful the question is tell the largest prime number

Answer»

Step-by-step explanation:

9999999999999999999999999

Discussion

50.	Solve the polynomial - (3x-5/x) ^3
Answer» ANSWER: Step-by-step EXPLANATION: -27x^3+125/x =0 5=3x^4 x^4=3/5 x= $\sqrt{3/4}$

50.

Solve the polynomial - (3x-5/x) ^3

Answer»

ANSWER:

Step-by-step EXPLANATION:

-27x^3+125/x =0

5=3x^4

x^4=3/5

x= $\sqrt{3/4}$

Discussion

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4. A number consists of two-digits. The digit at the units place is 3 times thedigit at the tens place. If 36 is added to the number, the digits are reversed.Find the number

Number = 26

Solution :

Let unit place = x

Tenth place = y

Number =10y +x

According to the question,

x = 3y - - - - - - - - (1)

(10y +x) +36 =10x +y

10y +x - 10x - y +36=0

9y - 9x +36 =0

9x - 9y =36

9(x- y) =36

(x-y) =36/9

x - y = 4 - - - - - - - - - - (2)

Now PUTTING the values of x from equation (1) in (2)

3y - y = 4

2y = 4

y = 4/2

y = 2

Putting the value of y in equation (1)

x = 3y

x = 3 ×2

x = 6

Hence the original number is

Number =10y +x

= 10 ×2 +6

= 20+ 6

= 26 Ans.

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Write the coefficient of 5x² in 5x² -5x

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