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31 May, 20:48

The area of a rectangular wall of a barn is 140 square feet. Its length is 6 feet longer than twice its width. Find the length and width of the wall of the barn.

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  1. 31 May, 21:17
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    Area = A = L x w=140

    L=6 x (2w) = 12w

    so 12w² = 140, w² = 11.66 implies w = 3.41, and L = 12*3.41 = 40.9
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