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25-01-2017
Mathematics

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in a gym class the ratio of girls to total students is 4:7 there are 9 boys in the gym class how many students are in the gym class

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onerepublicmusoujxfb onerepublicmusoujxfb

14-08-2017

4:7 = x/9+x. 36 + 4x = 7x. 36=3x. x=12. x=girls in class. x+9=all students in class.

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