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18 May, 13:01

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

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Answers (2)
  1. 18 May, 13:07
    0
    In a class of 87 boys, there will be 29 girls.

    Step-by-step explanation:

    Givens

    Ratio

    25 girls

    75 boys.

    Class size = 87 boys

    Proportion

    25 girls / 75 boys = x / Class Size

    Solution

    Class size = 87 boys

    25/75 = x / 87 Multiply both sides by 87

    25 * 87 / 75 = 87 x / 87 Multiply 87 * 25

    2175 / 75 = x Divide by 75

    29 = x
  2. 18 May, 13:28
    0
    29 girls per 87 Boys
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