A sum of $500 is in the form ofdenominations of $5 and $10. If the tot

1.	A sum of $500 is in the form ofdenominations of $5 and $10. If the totalnumber of notes is 90 find thenumberofnotes of each denomination?
Answer» ANSWER: let the number of $5notes be x and $10notes be y so, x+y=90 => -5x-5y= -450 ..............(1) valve of notes is 5x+10y=500..................(2) add (2)+(1) => 5x+10y-5x-5y=500-450 => 5y=50 => y=10 so, x=80 SO NO: OF $5 *NOTES* IS 80 $10 *NOTES* IS 10 PLEASE MAKE MY ANSWER AS BRAINLIEST PLEASE

A sum of $500 is in the form ofdenominations of $5 and $10. If the totalnumber of notes is 90 find thenumberofnotes of each denomination?

Answer»

let the number of $5notes be x and $10notes be y

so, x+y=90 => -5x-5y= -450 ..............(1)

valve of notes is 5x+10y=500..................(2)

add (2)+(1)

=> 5x+10y-5x-5y=500-450

=> 5y=50 => y=10

so, x=80

SO NO: OF