Question

A sum of $500 is in the form of
denominations of $5 and $10. If the total
number of notes is 90
find the
number
of
notes of each denomination?​

Answer 1

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

1. $5 NOTES IS 80
2. $10 NOTES IS 10

PLEASE MAKE MY ANSWER AS BRAINLIEST PLEASE