math

The ratio of girls to boys in the junior high band is 5 to 7. At the beginning of the year, there were 72 students in band. By the end of the year the ratio of girls to boys was 3 to 4. If there are now 48 boys in the band how many girls joined the band during the school year?

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  1. beginning ratio 5:7
    Girls=30
    Boys=42

    ending ration 3:4
    Boys=48

    48/4=12
    12*3=36

    Girls=6

    36-30=6

    6 more girls joined

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  2. The ratio of boys to girls in a marching band is 4:5
    Write ratio in two other ways

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