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Mathematics 9 Online
OpenStudy (anonymous):

http://prntscr.com/8rzf4x help

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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