Mathematics
QueenDee17
19

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) Answers
jurnilove

[latex]l*w=140[/latex] [latex]l=2w+6)[/latex] [latex](2w+6)*w=2w ^{2} +6w=140[/latex] [latex]70=w^2+3w[/latex] [latex]70=w(w+3)[/latex] w=7 [latex]l=2(7)+6[/latex] [latex]l=20[/latex]

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