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L = 2W

2W x W = 128

2W squared = 128

w squared = 64

W = 8

Width 8 ft, length 16 ft

8 x 16 = 128 QED

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โˆ™ 2015-02-09 19:44:17
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Q: If the width of a rectangular poster is half its length and the area of the poster is 128 square feet what is the width of the poster?
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