SOLUTION: At a certain high school, the ratio of boys to girls is 5 to 4. If there are 2400 boys, how many girls are there?

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Question 386265: At a certain high school, the ratio of boys to girls is 5 to 4. If there are
2400 boys, how many girls are there?

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
At a certain high school, the ratio of boys to girls is 5 to 4. If there are
2400 boys, how many girls are there?
...
%28boys%2Fgirls%29=%285%2F4%29=%282400%2Fx%29
...
cross multiply
..
5x=4*2400
/5
x=4*2400/5
%28highlight%28x=1920%29%29 girls