Question

30)

The variable y is directly proportional to the variable x. If y = 12 when x = 14, what is the value of x when y = 747

Answer 1

871.5

Explanation:

directly proportional

y = kx

y = 12 when x = 14

12 = k(14)

k = 12/14

k = 6/7

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what is the value of x when y = 747

747 = (6/7) * x

Multiply both sides by 7/6

747 * 7/6 = x

871.5 = x