Solve a direct variation problem

Question

given that T varies directly as S, and T = 36 when S=9, find T when S=7.

Answer 1

(T/s)=(36/9)=(x/7) => x=28

In this case the proportion needs to be kept, so one way is to establish the proportion and then multiply the number times it. (36/9) =4 the number is 7*4=28

The second id to solve the unknown as posted at the beginning.