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28 June, 12:33

There are two less nickels than dimes, and as many quarters, as nickels and dimes together. The total amount of money is $5.25. How many quarters, dimes, and nickels are there?

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  1. 28 June, 14:19
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    N=d-2

    q=n+d = >q = (d-2) = q=2d-2

    25q+5n+10d=525

    replace q and n with d

    25 (2d-2) + 5 (d-2) + 10d=525

    50d-50+5d-10+10d=525

    65d=585

    d=9

    n=7

    q=16
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