Question

In the following proportion, what does y equal?

Answer 1

Answer:

4 30

Cross multiply:

Y * 30 = 4 * 39

Simplifying

Y * 30 = 4 * 39

Reorder the terms for easier multiplication:

30Y = 4 * 39

Multiply 4 * 39

30Y = 156

Solving

30Y = 156

Move all terms containing Y to the left, all other terms to the right.

Divide each side by '30'.

Y = 5.2

Simplifying

Y = 5.2

Answer 2

Y/4 = 39/30

Cross multiply:

30y = (4 x 39)

30y = 156

Divide both sides by 30:

Y = 156/30

Y = 5.2

The answer is C. 5.2