The area of a rectangular wall of a barn is 220 square feet. its length is 12 feet longer than the width. find the length and width of the wall of the barn.

Question

Mathematics

Cedric Mills

15 August, 02:50

The area of a rectangular wall of a barn is 220 square feet. its length is 12 feet longer than the width. find the length and width of the wall of the barn.

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Answers (1)

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Sean Beck · Answer 1

Width - x

Length - (x+12)

Area - x (x+12)

x (x+12) = 220

x²+12x-220=0 - 220 = 22 * (-10), 12=22-10

(x+22) (x-10) = 0

x=-22, x=10

For width we can use only positive number,

so, width is 10 feet.

Length is 10+12=22 feet.