Question

Y varies directly as x. if x =5 when y=12. find x when y=30

Answer 1

X = 5 ... y = 12
x = ? ... y = 30

If you would like to know the value of x when y = 30, you can calculate this using the following steps:

5 * 30 = x * 12
x * 12 =150    /12
x = 150 / 12
x = 12.5

The result is 12.5.