Homework Help: Math

Posted by Angie on Monday, March 30, 2009 at 7:41pm.

There 1170 students in a school. The ration of girls to boys is 23:22. The system below describes relatioonships between the number of girls and the number of boys.

g+b=1170 g/b=23/22

a. what's the proportion for g when you solve it?
b. how do you solve the system?

Math - bobpursley, Monday, March 30, 2009 at 7:42pm
g=23b/22
23b/22+b=1170
multiply both sides by 22
solve for b.

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