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OpenStudy (anonymous):
Solve for x in the following proportion: 3/5 = 18/x A. x = 10 B. x = 20 C. x = 30 D. x = 40
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OpenStudy (anonymous):
3/5 = 18/x (cross multiply) (3)(x) = (18)(5) 3x = 90 x = 30
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