Question

The value of y varies directly with x. When y = 8.4, x = 3.5. What is the value of x when y is 12?

Answer 1

the value of x will be 7.1 when y = 12

Explanation:

first you would find the difference between the y value 8.4 and see how far it is from 12. you should get 3.6 after that, add 3.6 and the x value and that'll give you your x for when y = 12.