kelly has 24 dimes and quarters worth $3.60. how many quarters does she have?

Answer 1

d = number of dimes at $0.10 each

q = number of quarters at $0.25 each

d + q = 24

0.10d + 0.25q = 3,60

d = 24 - q

0.10(24 - q) + 0.25q = 3.60

q = 8

d = 24 - q = 24 - 8 = 16

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