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10 June, 22:29

A middle school has a speech club with a total of 18 students. The ratio of girls to boys is 4:5. How many girls are in the speech club? How many boys are in the speech club? Justify your answers. (using linear equations)

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  1. 10 June, 22:32
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    The ratio is 4:5

    so girls=4x

    and boys=5x

    (because you don't know how many boys or girls there are)

    then the equation would be

    4x+5x=18

    9x=18

    so x=2

    then 2 times 4 which equals 8

    and 2 times 5 which equals 10

    so there are 8 girls and 10 boys
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