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2 January, 03:09

Joey has $5.75 made up of dimes and quarters. If Joey has 38 coins, how many of each coin does he have?

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  1. 2 January, 04:19
    0
    D+q=38

    0.1d+0.25q=5.75

    Multiply the second equation by - 10 and use elimination method.

    -d-2.5q=-57.5

    d+q=38

    -1.5q=-19.5

    q=13

    Plug quarter number in

    d+13=38

    d=25

    Final answer: 13 quarters, 25 dimes
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