Posted by **Kirk** on Friday, March 26, 2010 at 9:17pm.

The ratio of boys to girls in Mr. Joiner’s class is 5 to 7. If there are 15 boys in the class, how many total

students are in the class?

- math/hurry -
**Reiny**, Friday, March 26, 2010 at 9:23pm
Ratio of boys : girls = 5:7 or how about 5x : 7x

so 5x = 15

wouldn't there be 5x + 7x or 12x students ?

take it from here.

- math/hurry -
**Jen**, Friday, March 26, 2010 at 9:59pm
5/7=15/x, x=21

- math/hurry -
**esdeeeeeeeeeeeeeeeeeeeee**, Thursday, August 28, 2014 at 4:28pm
dcXC

- math/hurry -
**Erhan**, Monday, December 15, 2014 at 5:52pm
In a gym class, the ratio of girls to the total number of students is 7:10. There are 9 boys in the gym class. How many students are in the gym class

- math/hurry -
**joanne**, Thursday, March 12, 2015 at 1:22pm
21 people on trip ratio boys to girls is 2:5 how many girls went in trip

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