SOLUTION: The length of a rectangle is 13 centimeters less than five times its width. The area is 28 square centimeters. Find the dimensions of the rectangle.

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Question 861410: The length of a rectangle is 13 centimeters less than five times its width. The area is 28 square centimeters. Find the dimensions of the rectangle.

Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
width = x
length = 5x-13

x(5x-13) = 28
5x^2 - 13x - 28 = 0
(x - 4)(5x + 7) = 0
x = 4 or x = -7/5

Distance must be positive, so the rectangle is 4 inches wide and 7 inches long.