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22 November, 13:07

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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Answers (2)
  1. 22 November, 14:57
    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. 22 November, 16:59
    0
    There are 11 quarters and 2 dimes in the purse
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