alexismunoz86 alexismunoz86

14-08-2017
Mathematics

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The width of a rectangular poster is half its length.the area of the poster is 128 square feet.what is the width of the poster?

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Banabanana Banabanana

14-08-2017

width = x
length = 2x

x * 2x = 128
2x² = 128
x² = 128/2
x² = 64
x = √64 = 8 ft

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