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March 31, 2015

March 31, 2015

Posted by **Taylor** on Wednesday, February 10, 2010 at 11:00am.

- Math -
**drwls**, Wednesday, February 10, 2010 at 11:11amSet up the two equations in the two vzriables, length (L) and width (W).

They are:

L - W = 6

and

L W = 84

Then solve them, using algebra.

- Math -
**Taylor**, Wednesday, February 10, 2010 at 2:25pmWhat do you mean by solving them by using algebra? I don't understand what to do

- Math -
**drwls**, Wednesday, February 10, 2010 at 3:39pmI made two mistakes. I was very sloppy reading the problem,. and apologize.

This is how algebra is done. If you don't use this method, you will have to keep trying pairs of numbers until you get as pair that works,

L = 2W + 6 since the length L is 6 more than twice the width, W.

2(L + W) = 84 since that is the perimeter

2L - 4W = 12

2L + 2W = 84

6W = 72

W = 12

L = 30

- Math -
**Taylor**, Wednesday, February 10, 2010 at 3:50pmThank you for your help!!

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