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math

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franklin school has 3 boys for every 4 4 girls in fifth grade . there were 140 students in the fifth grade.
A.how many are boys
B.how many are gorls

  • math -

    Let x equal the total number of boys.

    3/7 = x/140

    Cross multiply.

    7x = 420

    x = 420/7
    x = ?

  • math -

    60 boys
    80 girls

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