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8 September, 14:07

Stephanie weighs 3 times as much as Rachel. Both weights are whole numbers and the sum of their weights is less than 160 pounds. Find the greatest possible weight for each girl.

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  1. 8 September, 14:12
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    Weight of Stephanie=3x

    weight of Rachel=x

    Therefore, we have this inequation:

    x+3x<160

    4x<160

    x<160/4

    x<40 so, the greastest possible weight for x (Rachel) is 39; x=39

    weight of Stephanie=3x=3 (39) = 117.

    The greatest possible weight for eache girl is:

    Stephanie=117 pounds

    Rachel=39 pounds.
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