SOLUTION: The length of a rectangle is 8 inches greater than its width. Find the width of the rectangle if its area is 105 square inches.
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-> SOLUTION: The length of a rectangle is 8 inches greater than its width. Find the width of the rectangle if its area is 105 square inches.
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Question 39808: The length of a rectangle is 8 inches greater than its width. Find the width of the rectangle if its area is 105 square inches.
Thank you Answer by fractalier(6550) (Show Source):
You can put this solution on YOUR website! Let the width be w. The length is then w+8. We multiply them to get area.
A = LW
A = (w+8)w
105 = w(w+8)
w^2 + 8w - 105 = 0
(w + 15)(w - 7) = 0
w = -15 (impossible) or
w = 7 inches
