celinegomez44 celinegomez44

21-01-2016
Mathematics

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The length of Marshall's rectangular poster is 2 times its width. If the perimeter is 24 inches, what is the area of the poster?

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apologiabiology apologiabiology

21-01-2016

perimiter=legth+legnth+width+width=2l+2w
l is 2 times w
l=2w
p=24
subsitute
24=2l+2w
24=2(2w)+2w
24=4w+2w
24=6w
divide both sides by 6
4=w
subsitue
l=2w
l=2(4)
l=8

legnt=8 in
width=4 in

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