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The perimeter of a particular rectangle is eight times its width. If the area of the rectangle is $243\text{ in}^2$, what is the width of the rectangle, in inches?

 Mar 4, 2021
 #1
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wait is it 9?

 Mar 4, 2021
 #2
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I just calculated it and thats what i got

 Mar 4, 2021
 #3
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w + w    + L + L =  8w

2L = 6w

L = 3w

 

w * 3w = 243

3w^2 = 243

w = 9  in           

 Mar 4, 2021
 #4
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thx I just got it XD

 Mar 4, 2021

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