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1 December, 16:24

A purse contains $2.95 in quarters and dimes. there are 9 more quarters than dimes. find the number of quarters and dimes.

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  1. 1 December, 16:41
    0
    0.25q + 0.10d = 2.95

    q = d + 9

    0.25 (d + 9) + 0.10d = 2.95

    0.25d + 2.25 + 0.10d = 2.95

    0.25d + 0.10d = 2.95 - 2.25

    0.35d = 0.70

    d = 0.70/0.35

    d = 2 < = = = 2 dimes

    q = d + 9

    q = 2 + 9

    q = 11 < = = = 11 quarters
  2. 1 December, 16:42
    0
    There are 11 quarters and 2 dimes in the purse
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