SOLUTION: The ratio of girls to boys in a class is 9 : 7. If there are 10 more girls than boys, how many are boys? How many are girls?

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Question 928863: The ratio of girls to boys in a class is 9 : 7. If there are 10 more girls than boys, how many are boys? How many are girls?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

The ratio of girls to boys in a class is 9 : 7.

Let x represent the constant of proportionality

9x  = 7x + 10

2x = 10

x = 5

45G  and 35B