Rio and Chi go to a fruit shop.Rio buys 4 apples and 2 plums for $1.96

1.	Rio and Chi go to a fruit shop.Rio buys 4 apples and 2 plums for $1.96 .Chi buys 7 apples and 3 plums for $3.24 .Write down a pair of simultaneous equations and solve them to find the cost of 1 apple and the cost of 1plum.
Answer» <P>Answer: Let the cost of 1 apple be a and cost of one PLUM be p, then it is given 4a+2p=1.96 equation 1 7a+3p=3.24 equation 2 multiply eq 1 by 3 and equation 2 by 2 and then SUBTRACT eq 1 from eq 2, you will get 14a -12a=2×3.24-3×1.96 2a =6.48-5.88=0.60 a=0.30 put this value of a in any of the above EQUATIONS, you will get p=0.38

Rio and Chi go to a fruit shop.Rio buys 4 apples and 2 plums for $1.96 .Chi buys 7 apples and 3 plums for $3.24 .Write down a pair of simultaneous equations and solve them to find the cost of 1 apple and the cost of 1plum.

Answer»

<P>Answer:

Let the cost of 1 apple be a and cost of one PLUM be p, then it is given

4a+2p=1.96 equation 1

7a+3p=3.24 equation 2

multiply eq 1 by 3 and equation 2 by 2 and then SUBTRACT eq 1 from eq 2, you will get

14a -12a=2×3.24-3×1.96

2a =6.48-5.88=0.60

a=0.30

put this value of a in any of the above EQUATIONS, you will get

p=0.38

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Rio and Chi go to a fruit shop.Rio buys 4 apples and 2 plums for $1.96 .Chi buys 7 apples and 3 plums for $3.24 .Write down a pair of simultaneous equations and solve them to find the cost of 1 apple and the cost of 1plum.

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