Question 1043721: A collection of nickels and quarters is worth $18.50. there are 118 coins and all. How many are nickels and how many are quarters? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A collection of nickels and quarters is worth $18.50. there are 118 coins and all. How many are nickels and how many are quarters?
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Quantity:: n + q = 118 coins
Value:: 5n + 25q = 1850 cents
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Modify for elimination:
n + q = 118
n + 5q = 370
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Subtract and solve for "q"::
4q = 252
q = 63 # of quarters
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n = 118-q = 118 - 63 = 55 (# of nickels)
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Cheers,
Stan H.
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