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OpenStudy (anonymous):
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OpenStudy (shinalcantara):
since you are given the amount of 62.10, all you have to do is substitute it to the given equation with P=62.10 so you'll have P = (20 + 0.5x) + 0.15(20 + 0.5x) 62.10 = (20 + 0.5x) + 0.15(20 + 0.5x) solve for x
OpenStudy (shinalcantara):
removing parenthesis and distributing 0.15 you'll have 62.10 = 20 + 0.50x +0.15(20) + 0.15(0.5x) 62.10 = 20 + 0.50x +3 + 0.075x 62.10 -20 - 3 = 0.50x + 0.075x 39.10 = 0.575x x = 68 pages
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