Homework Help: pre algebra

Posted by jeffrey on Tuesday, October 4, 2011 at 10:38pm.

the ratio of boys to girls in an art class is 3.5. there are 12 boys in the class. how many girls are in the class?

pre algebra - Ms. Sue, Tuesday, October 4, 2011 at 10:40pm
Cross multiply and solve for x.

3/5 = 12/x

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