SOLUTION: The perimeter of a rectangle is 42cm. The length is 3cm greater than the width. Find the width.

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Question 335155: The perimeter of a rectangle is 42cm. The length is 3cm greater than the width. Find the width.
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Let represent the measure of the width. Then represents the measure of the length.

The formula for the perimeter is:



Substitute the expressions we defined for length and width and the value for the perimeter and then solve for .

John

My calculator said it, I believe it, that settles it