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14 April, 10:49

Find the width of a rectangular pool that has a perimeter of 890 feet if the width is five more than three times the length

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  1. 14 April, 11:01
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    A) 2W + 2L = 890

    B) W = 3L + 5

    Multiplying equation B by - 2

    B) - 2W = - 6L - 10

    B) - 2W + 6L = - 10

    then adding to equation A

    A) 2W + 2L = 890

    8L = 880

    L = 110

    W = 335
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