Problema Solution

The total amount of revenue generated at the school snack bar $45.25. The school earned $30 in one and five dollar bills, and the remaining amount was collected in quarters and dimes. If there were nine more dimes than quarters, how many of each coin were collected by the snack bar?

Answer provided by our tutors

let their was X coins of quater then according to the problem 

X*0.25 + (X+9)*0.10= 15.25

SO 

0.35X= 14.35

X=1435/35=41