Math

The ratio of boys to the total number of students in a school play is 7:10. There are 9 girls in the school play. How many students are in the school play?

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  1. if there are b boys and g girls,

    b/(b+g) = 7/10
    g = 9
    so, b=21

    so, there are 21+9=30 students

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    posted by Steve

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