Question

William has 32 coins that are all either quarters or dimes. The coins have a value of $5.00. How many dimes does William have?

Answer 1

Explanation:

d + q = 32

.10d + .25q = 5.00

d + q = 32

10d + 25q = 500

-10d - 10q = -320

10d + 25q = 500

15q = 180

q= 12 quarters

d + 12 = 32

d = 20 dimes