The ratio of Grade 7 students to Grade 8 students going on a hiking trip is 3:4. If there are 84 students going, how many are in Grade 7?

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2 Answers

3x+4x=84

7x=84

x=84/7=12

The number of students in grade 7 =3x=3(12)=36
by Level 8 User (32.3k points)
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