Posted by lisa on Thursday, February 14, 2013 at 6:47pm.
if the ratio of boys to girls is 3/4 and there are 49 students how many boys are there?

math  Ms. Sue, Thursday, February 14, 2013 at 6:56pm
3/7 = x/49
Cross multiply and solve for x.

math  lisa, Thursday, February 14, 2013 at 7:28pm
75

math  Ms. Sue, Thursday, February 14, 2013 at 7:34pm
Does 75 make sense? There are only a total of 49 students.
This site explains how to solve a problem with a proportion.
http://www.aaamath.com/ratpropcrossx.htm

math  x, Thursday, April 2, 2015 at 10:09am
21
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