Question

The value of y varies directly with x. If x = 8, then y = 96. What is the value of x when y = 168?

Answer 1

• x = 14

Explanation:

Direct variation equation:

• y = kx, where k is constant of variation

Given:

• 96 = 8k
• k = 96/8
• k = 12

The equation is:

• y = 12x

Find the value of x when y = 168:

• 168 = 12x
• x = 168/12
• x = 14