Question 825560: Brian has 23 coins in his pocket, in dimes and nickels. The total value of the change is $1.85. How many dimes and nickels does he have? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Brian has 23 coins in his pocket, in dimes and nickels. The total value of the change is $1.85. How many dimes and nickels does he have?
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Quantity:: n + d = 23 coins
Value:::: 5n +10d= 185 cents
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Modify:
n + d = 23
n + 2d= 37
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Subtract and solve for "d":
d = 14 (# of dimes)
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Solve for "n":
n + d = 23
n + 14 = 23
n = 9 (number of nickels)
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Cheers,
Stan H.
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