SOLUTION: Dan has the same number of nickels and dimes in his piggy bank. if the total of amount of those coins is $0.90, how many of each coin does he have ?
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Question 1118115: Dan has the same number of nickels and dimes in his piggy bank. if the total of amount of those coins is $0.90, how many of each coin does he have ? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Dan has the same number of nickels and dimes in his piggy bank. if the total of amount of those coins is $0.90, how many of each coin does he have ?
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n - d = 0
5n+10d = 90
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n-d = 0
n+2d = 18
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Subtract and solve for "d":
3d = 18
d = 6 (# of dimes)
n = d = 6 (# of nickels)
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Cheers,
Stan H.
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