SOLUTION: The perimeter of a rectangle is 42 inches. The length is 3 inches less than twice the width. Find the dimensions of the rectangle.

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Question 613353: The perimeter of a rectangle is 42 inches. The length is 3 inches less than twice the width. Find the dimensions of the rectangle.
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


If a rectangle with perimeter has a length that is units longer (or shorter if ) than times the width, ,

Then knowing that the Perimeter is given by:

,

make the substitution:



Then solve for







For your problem: , , and . Do the arithmetic.

John

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