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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asked Sep 23, 2017 44.3k views

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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.

Mathematics
high-school

Schacki asked

by Schacki

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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

Rajesh Naroth answered Sep 28, 2017

by Rajesh Naroth

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