SOLUTION: Mrs. Boyd has a desk full of quarters and nickels. If she has a total of 29 coins with a total face value of $3.65. How many of the coins are nickels?

Question 182534: Mrs. Boyd has a desk full of quarters and nickels. If she has a total of 29 coins with a total face value of $3.65. How many of the coins are nickels?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Mrs. Boyd has a desk full of quarters and nickels. If she has a total of 29 coins with a total face value of $3.65. How many of the coins are nickels?
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Equation:
Quantity Eq: n + q = 29
Value Equat: 5n + 25q = 365 cents
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Multiply thru 1st by 25 :
25n + 25q = 25*29
5n + 25q = 365
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Subtract 2nd from 1st to solve for "n":
20n = 360
n = 18 (# of nickels)
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Cheers,
Stan H.

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