SOLUTION: rectangles length is 10 feet longer than its width. If the area of the rectangle is 75 square feet, find its demensions
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Question 270652: rectangles length is 10 feet longer than its width. If the area of the rectangle is 75 square feet, find its demensions Answer by Greenfinch(383) (Show Source):
You can put this solution on YOUR website! Call width x, then length is x + 10
Area is x(x+ 10) = 75
x^2 + 10x - 75 = 0
(x +15)(x - 5) = 0
x = 15 or -5
-5 is not an option, so width is 5 and length is 15
