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Mathematics 20 Online
OpenStudy (anonymous):

Check my answer? What is the solution of the proportion? 7/9 = m/27 My answer: 3

OpenStudy (anonymous):

@dc104

OpenStudy (anonymous):

You have to use cross muliplication again 27(7) = 9m 189 = 9m m = 21 Does that make sense?

OpenStudy (anonymous):

Ah, yes, I see where I went wrong. Thank you!

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