SOLUTION: The area of a rectangle is 100 inches squared. The width is x-15 inches and the length is x inches. Find the dimensions of the rectangle.
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Question 1058045: The area of a rectangle is 100 inches squared. The width is x-15 inches and the length is x inches. Find the dimensions of the rectangle.
Answer by solve_for_x(190) (Show Source): You can put this solution on YOUR website!
Area = Length * Width
x(x - 15) = 100
x^2 - 15x - 100 = 0
(x - 20)(x + 5) = 0
x = -5, 20
Since the negative result is impossible, the length is 20 inches.
The corresponding width is x - 15 = 20 - 15 = 5
Solution: Length = 20 inches, Width = 5 inches
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