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9 July, 23:02

0.25q+0.10d=4.95

D=3q

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  1. 9 July, 23:28
    0
    0.25q + 0.1d = 4.95

    d = 3q

    0.25q + 0.1 (3q) = 4.95

    0.25q + 0.3q = 4.95

    0.55q = 4.95

    0.55 0.55

    q = 9

    0.25 (9) + 0.1d = 4.95

    2.25 + 0.1d = 4.95

    - 2.25 - 2.25

    0.1d = 2.7

    0.1 0.1

    d = 27
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