i need help on this math problem in the description

Question

a survey in one middle scholl showed that 3 out of 5 students enjoy biking on the weekends. predict how many out of the 485 students in the school would say they like biking on the weekends

Answer 1

To solve this question you set the fraction (3/5) equal to (X/485). Then solving for X will give you the answer. The fraction of 3/5 can be generalized to the total student population. 

 

 

3/5=X/485

 

5X=1455

 

X=291 students