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Mathematics 14 Online
OpenStudy (anonymous):

What is the solution to the proportion? 6/15 = x/20 A. x = 2.5 B. x = 8 C. x = 4.5 D. x = 12

OpenStudy (kohai):

So there's a quick and easy way to do this!

OpenStudy (kohai):

Have you cross-multiplied before?

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