Question

If y is directly porportional to x, and y=84 when x=7, what is the value of x when y=156? A.7 B.12 C.13 D.22

Answer 1

If 7x12=84, since 7 goes into 84 an amount 12 times, then what multiplied by 12 as well goes into 156? Well if you multiply 13 by 12 as well, since they are proportional, then the answer would be 13, which is C on your list.

13x12=156