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mathematics

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In a collection of nickels, dimes and quarters, there are twice as many dimes as nickels, and 4 fewer quarters than dimes. The total value of the coins is $5.75.
How many nickels are there in the collection ?

  • mathematics -

    X Nickels.
    2x Dimes.
    (2X-4) Quarters.

    5x + 10*2x + 25(2x-4) = 575 Cents.
    Solve for x.

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