The ratio of 6th graders to 7th graders in the competition is 15 to 8. How many 7th graders are there if 225 6th graders are competing?

8 answers

15/8 = 225/x

Cross multiply and solve for x.
X= 12.5
X=35
How can you get a half a person?

Do you know what it means to cross multiply?
35 is not right, either
120
Yes. There 120 seventh graders.
i dont know maths