vivi4924 vivi4924
  • 04-02-2019
  • Mathematics
contestada

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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jcherry99
jcherry99 jcherry99
  • 04-02-2019

Answer:

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

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danny223
danny223 danny223
  • 04-02-2019
29 girls per 87 Boys
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