SOLUTION: In a pile of nickles and dimes, the number of nickles is three rimes the number of dimes and the pile is worth $1.75. How many nickles are there?

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Question 557121: In a pile of nickles and dimes, the number of nickles is three rimes the number of dimes and the pile is worth $1.75. How many nickles are there?
Answer by stanbon(57282) About Me  (Show Source):
You can put this solution on YOUR website!
In a pile of nickles and dimes, the number of nickles is three rimes the number of dimes and the pile is worth $1.75. How many nickles are there?
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Equations:
Quantity: n = 3d
Value: 5n + 10d = 175 cents
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Substitute for "n" and solve for "d":
5(3d) + 10d = 175
25d = 175
d = 7 (# of dimes)
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# of nickels = 3d = 21
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Cheers,
Stan H.
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