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5 May, 13:46

The ratio of Seth's height to Jack's height is 3:4 if Jack is 15 inches taller than Seth, what is Seth height.

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  1. 5 May, 14:06
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    Set up proportion 3/4 = S/S+15

    4s = 3s + 45

    subtract 3s from both sides

    s=45

    You can check by taking Seth's height of 45 over Jack's height of 60 (45+15).

    And reduce the fraction to 3/4 or a ratio of 3:4.
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