Asked by Ratios
The ratio of the number of junior high students to the number of senior high students in a school is 7 to 9. If there are 100 more senior high students than junior high students, how many junior high students are there?
Answers
Answered by
Steve
if there are n jr high students, then we have
n/(n+100) = 7/9
9n = 7(n+100)
2n = 700
n = 350
n/(n+100) = 7/9
9n = 7(n+100)
2n = 700
n = 350
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