SOLUTION: The length of a rectangular sheet of paper is 4 inches more than twice its width. If the area of the sheet is 160 square inches, what are its length and width? Use factoring to sol
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Question 760419: The length of a rectangular sheet of paper is 4 inches more than twice its width. If the area of the sheet is 160 square inches, what are its length and width? Use factoring to solve the problem. Answer by Cromlix(4381) (Show Source):
You can put this solution on YOUR website! Width = x
Length = 4 + 2x
Area = length * width
160 = (4 + 2x)*x
160 = 4x + 2x^2
2x^2 + 4x - 160 = 0
Divide by 2
x^2 + 2x - 80 = 0
(x + 10)(x - 8) = 0
x = 8
x = - 10 (no answer)
Width = 8 inches
Length = 20 inches.
Hope this helps.
:-)
