You can put this solution on YOUR website! A collection of 27 dimes and quarters is worth $4.95. How many dimes and quarters are there?
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Quantity Eq::: d + q = 27 coins
Value Eq::: 10d+25q = 495 cents
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10d + 10q = 10*27
10d + 25q = 495
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15q = 225
q = 15 (# of quarters)
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Solve for "d":
d + q = 27
d + 15 = 27
d = 12 (# of dimes)
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Cheers,
Stan H.
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