SOLUTION: I really need your help!
The length of a rectangle is 3ft less than 2 times the width. What is the length and width if the perimeter is 42?
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The length of a rectangle is 3ft less than 2 times the width. What is the length and width if the perimeter is 42?
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Question 565972: I really need your help!
The length of a rectangle is 3ft less than 2 times the width. What is the length and width if the perimeter is 42? Answer by ad_alta(240) (Show Source):
You can put this solution on YOUR website! Let 'l' be the length and 'w' the width. Then l=2w-3. Also, 42=2w+2l. Substituting the first equation into the second we get 42=2w+2(2w-3). Solving, we get w=8 and l=13.
