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OpenStudy (anonymous):
http://prntscr.com/8rzf4x help
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OpenStudy (nehemias123):
it is b
OpenStudy (texaschic101):
42/54 = x/9 -- this is a proportion, so we cross multiply 54x = (42)(9) 54x = 378 -- divide both sides by 54 x = 7
OpenStudy (nehemias123):
you do 54/9=6 so you got to do 42/6=7 so the anser is 7
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