Question

Wanda gave $5.30 in nickels, quarters and dimes to her daughter. The number of dimes exceeded the number of nickels by 3, and the number of quarters was 20 less than the number of nickels. FInd the number of each kind of coin she gave her daughter using consecutive integers.

Answer 1

let y equal the number of nickels
your equation becomes
(y x .05) + [(y+3) x .10] + [(y-20) x .025] = $5.30
then just solve for y