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Asked by lauri

If a parking meter has 100 coins in it that add up to $14.50, how man are dimes and how many are quarters?
15 years ago

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Answered by drwls
D + Q = 100
10D + 25Q = 1450

10(100 -Q) + 25Q = 1450

1000 -10Q + 25Q = 1450
15Q = 450
Q = 30 is the number of quarters
D = 70 is the number of dimes
15 years ago
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If a parking meter has 100 coins in it that add up to $14.50, how man are dimes and how many are quarters?

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