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10 January, 16:13

A rectangular us four times as long as it is wide. if the area is 144 ft^2, find the length and width of the table

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  1. 10 January, 18:16
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    x (4x) = 144 {area is width x length}

    4x^2 = 144 {multiplied x by 4x}

    x^2 = 36 {divided both sides by 4}

    x = 6 {took square root of both sides}

    4x = 24 {substituted 6, in for x, into 4x}

    width = 6ft and length = 24ft
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