SOLUTION: The length of a rectangle is 4 inches more than its width. If the area of the rectangle is 77 square inches what is its length?
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Question 383980: The length of a rectangle is 4 inches more than its width. If the area of the rectangle is 77 square inches what is its length?
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Suppose the width is w and the length is 4+w. We have
This factors to
Therefore the only (positive) root is w = 7. Therefore the length is 11.
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