17-11-2015
Mathematics

contestada

The ratio of girls to boys is 3 to 5. There are 15 boys in the class. How many girls are there?

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davidyangnyc davidyangnyc

17-11-2015

ratio of girls to boys is 3:5
15 boys
5 times 3= 15
so do 3*3 to balance ot proportion
9 girls

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