SOLUTION: Rico's collection of quarters and dimes contains $32.85. There are 171 coins in all. How many quarters and how many dimes are in Rico's collection?
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Question 179804: Rico's collection of quarters and dimes contains $32.85. There are 171 coins in all. How many quarters and how many dimes are in Rico's collection? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Rico's collection of quarters and dimes contains $32.85. There are 171 coins in all. How many quarters and how many dimes are in Rico's collection?
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Equations:
Quantity Equation: q + d = 171
Value Equation...:25q+10d = 3285 cents
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Modify to get:
10q + 10d = 1710
25q + 10d = 3285
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Subtract 1st from 2nd to solve for "q":
15q = 1575
q = 105 (# of quarters)
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Substitute into q + d = 171 to solve for "d":
105 + d = 171
d = 66 (# of dimes)
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Cheers,
Stan H.
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