Question

In a classroom, 5 out 13 students surveyed said they had two or more siblings. If the entire school has 520 students, predict the number of students that have two or more siblings. Write a proportion to model the problem. In a classroom, 5 out 13 students surveyed said they had two or more siblings. If the entire school has 520 students, predict the number of students that have two or more siblings. Write a proportion to model the problem. @Mathematics

Answer 1

set up proportion: 5/13=x/520
cross multiply: 5*520=13x
isolate x: (5*520)/13=x
solve: x=200 students