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posted by Courtney on Friday, September 24, 2010 at 9:52am.
An artist wishes to frame a picture with 84 inches of framing material. How wide will the frame be if its width if 75% of its length?
W = .75L 84 = 2W + 2L = 2(.75L) + 2L = 3.5L L = 24 .75L = 18 = W
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