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Mathematics 18 Online
OpenStudy (anonymous):

what is the solution to the proportion 12/15 = 8/x

OpenStudy (anonymous):

A. 16 B. 10 C. 9 D. 12

OpenStudy (btaylor):

To find the answer you must cross-multiply: |dw:1394626175532:dw| You get 12x=8(15), so 12x=120. Can you solve for x?

OpenStudy (anonymous):

no explain @BTaylor

OpenStudy (btaylor):

Do you know what cross-multiplication is?

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