math/hurry

posted by Kirk 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

• math/hurry - Anonymous Thursday, June 11, 2015 at 3:57am

  Correct answers