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The height of a box is 7 the length is three inches more than the width find the volume is 126

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  1. 6 July, 17:35
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    answer c: 10

    Step-by-step explanation:

    v=H*W*L

    280=7*W * (6+W)

    280=42W+7W^2

    40=6w+w^2

    W^2+6W-40=0

    (W-4) (W+10) = 0

    W=4

    We can only use positive results

    L=6+W

    L=4+6=10

    =10
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