SOLUTION: Travis has a total of 20 coins consisting of nickels and quarters. The total value of the coins is $1.80. How many of each type of coin does he have?
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Question 693088: Travis has a total of 20 coins consisting of nickels and quarters. The total value of the coins is $1.80. How many of each type of coin does he have? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Travis has a total of 20 coins consisting of nickels and quarters. The total value of the coins is $1.80. How many of each type of coin does he have?
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Quantity Equatin: n + q = 20 coins
Value Equation:: 5n +25q= 180 cents
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divide thru the bottom equation to get:
n + q = 20
n +5q = 36
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Subtract and solve for "q":
4q = 16
q = 4 (# of quarters)
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Solve for "n":
n + q = 20
n + 4 = 20
n = 16 (# of nickels)
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Cheers,
Stan H.
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