Question

HELP ME OUT PLEASE!!!!!!

The value of y varies directly with x. If x= 3, then y = 18. What is the value of x when y = 84?

A) 4 2/3
B) 6
C) 14
D) 9​

Answer 1

x=14

The work:
3/18 =x/84 (cross multiply)
18x=252
18x/18=252/18
x=14

Answer 2

The answer is C
Set up a proportion
3/18 = x/84
(3)(84)=252
252/18=14