Answer: 16 quarters and 14 dimes
Explanation:
Set up the equations
Let d represent dimes
let q represent quarters
0.1d + 0.25q = 5.4
d = q - 2
Solve the system:
10d + 25q = 540
simplify: 2d + 5q = 108, and d = q - 2
2(q -2) + 5q = 108
2q - 4 + 5q = 108
7q = 112
q = 112/7 = 16
q = 16 quarters
d = 16 - 2 = 14 dimes
Therefore: 14 dimes and 16 quarters
From MysticAlanCheng