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Mathematics 59 Online
OpenStudy (anonymous):

how do you solve this proportion 3/r=4/11

OpenStudy (anonymous):

cross multiply.

OpenStudy (anonymous):

do you know how to do that?

OpenStudy (anonymous):

http://www.youtube.com/watch?v=Uv_hPQfJE4g

OpenStudy (anonymous):

here's it explained if the site didn't help you...to cross multiply, you do 3•11 = 4•r 33=4r (divide both side by 4) r = 8.25

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