SOLUTION: Coins in a store's register total $12.50. The register only has nickels, dimes, and quarters. There are twice as many dimes as nickels. There are also twice as many quarters as

Question 145059: Coins in a store's register total $12.50. The register only has nickels, dimes, and quarters. There are twice as many dimes as nickels. There are also twice as many quarters as dimes. How many dimes are there?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Coins in a store's register total $12.50. The register only has nickels, dimes, and quarters. There are twice as many dimes as nickels. There are also twice as many quarters as dimes. How many dimes are there?
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Let # of nickels be "x".
Then # of dimes is "2x".
And # of quarters is "4x"
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Value Equation: 5x + 10(2x) + 25(4x) = 1250 cents
5x + 20x + 100x = 1250
125x = 1250
x = 10 (# of nickels)
2x = 20 (# of dimes(
4x = 40 (# of quarters)
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Cheers,
Stan H.
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