blueblue212 blueblue212

06-05-2016
Mathematics

contestada

There are 42 students in student council. The ratio of girls to boys is 10:11. How many girls are in student council?

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MissaAnn MissaAnn

06-05-2016

Wouldn't it be 20 and the guys 22??????

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apologiabiology apologiabiology

11-05-2016

ratio is 10:11
10+11=21 units

42 divided into21 is
42/21=2
each unit is 2

girles=10 units=10 times 2=20

boys=11 units=11 times 2=22

20 girle

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