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The length of Marshall's poster is 2 times its width. If the perimeter is 72 inches, what is the area of the poster?

Sagot :

luana
[tex]x-width\\2x-length\\\\2x+2\cdot2x=72\\2x+4x=72\\6x=72\ \ \ \ |:6\\x=12\\\\2x=2\cdot12=24\\\\Area=24\cdot12=288\ in^2[/tex]
X= width
2x= length
2x+4x=72
6x=72
X=12
2(12)x(12)=24x12
The answer is 288 sq. in.
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