SOLUTION: The width of a rectangle is 3 inches less than its length. The area of the rectangle is 340 square inches. What are the length and width of the rectangle?

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Question 382443: The width of a rectangle is 3 inches less than its length. The area of the rectangle is 340 square inches. What are the length and width of the rectangle?
Answer by solver91311(24713) About Me  (Show Source):
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Let represent the width of the rectangle. Then the length is represented by . The area of a rectangle is the length times the width so:



Put it in standard form:



Factor and solve for . Exclude the negative root. Add 3 to find the length.

John

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