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8 May, 14:13

Among the eighth-graders in Micheal's school, 70% have siblings. The eighth-grade class is 5/6 the size of the seventh-grade class.

If 112 eighth-graders have siblings, how many students are in the seventh grade

A) 128

B) 134

C) 160

D) 192

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Answers (2)
  1. 8 May, 16:38
    0
    The correct answer is D) 192 brainliest.
  2. 8 May, 18:11
    0
    OK so if 70% of students in 8th grade have siblings and 112 8th graders have siblings, then:

    0.7 (total 8th graders) = 112

    total 8th graders = 112/0.7

    total 8th graders = 160

    And since the number of 8th graders is 5/6 the size of the 7th grade class:

    5/6 (7th grade class) = 160

    5 (7th grade class) = 960

    7th grade class = 192.

    The correct answer is D) 192.
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Home » Mathematics » Among the eighth-graders in Micheal's school, 70% have siblings. The eighth-grade class is 5/6 the size of the seventh-grade class. If 112 eighth-graders have siblings, how many students are in the seventh grade A) 128 B) 134 C) 160 D) 192
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