Question

Solve the proportion for “y”. 5/7=30/y

Answer 1

y = 42

Explanation:

5/7=30/y

Cross multiply.

5y = 7 × 30

5y = 210

Divide 5 into both sides.

y = 210/5

y = 42

Answer 2

y = 42

Explanation:

5/7=30/y

Use cross products

5y = 7*30

5y = 210

Divide by 5

5y/5 = 210/5

y =42