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31 August, 22:56

Kim has $4.75 in nickels and dimes. If she has twice as many dimes as nickels, how many of each coin does she have?

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  1. 31 August, 23:10
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    0.05n + 0.1d = 4.75

    d = 2n

    0.05n + 0.1 (2n) = 4.75

    0.25n * 100 = 4.75 8100

    25n = 475

    25n/25 = 475/25

    n = 19

    d = 2n

    d = 2 (19)

    d = 38

    dimes = 38

    nickels = 19
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