Question

If x and y are in direct proportion and y is 30 when x is 6,find y when x is 14

Answer 1

70

Explanation:

If y=30 when x=6, 5x=y (because they are in direct proportion).

So, when x=14 replace x.

5*14=y

y=70

you can prove this because 70/14=30/6=5

so, the proportions are equal