SOLUTION: Ron has 16 coins with a total value of $2.20. The coins are nickels and quarters. How many of each coin does he have?

Question 962470: Ron has 16 coins with a total value of $2.20. The coins are nickels and quarters. How many of each coin does he have?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Ron has 16 coins with a total value of $2.20. The coins are nickels and quarters. How many of each coin does he have?
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Quantity Eq:: n + q = 16 coins
Value Eq:::: 5n+25q = 220 cents
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Modify for elimination::
n + q = 16
n + 5q = 44
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Subtract and solve for "q"::
4q = 28
q = 7 (# of quarters)
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Solve for "n"::
n = 16-7 = 9 (# of nickels)
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Cheers,
Stan H.
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