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8 August, 21:37

The area of a rectangular wall of a barn is 55 square feet. Its length is 66 feet longer than the width. Find the length and width of the wall of the barn.

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  1. 8 August, 22:06
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    area = 55 feet

    area of rectangle = L x w

    l = w+6

    55 = w x w+6

    55=w^2 + 6w

    w^2 + 6w - 55=0

    (w-5) (w+11)

    width = 5 feet

    length = 5+6 = 11 feet
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