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6 August, 09:53

Enrollment at Roosevelt Middle School is being reviewed by the school staff. The table gives the numbers of boys and girls in grades 6 to 9.

Grade Girls Boys

6 9 12

7 12 18

8 15 20

9 25 36

In which two grades is the relationship between the numbers of girls and boys proportional?

The two grades that have a proportional relationship between the numbers of girls and boys are and.

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  1. 6 August, 12:57
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    6th grade : 9/12 = 3/4

    7th grade : 12/18 = 2/3

    8th grade : 15/20 = 3/4

    9th grade : 25/36

    proportional grades are in 6th and 8th
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