Question

Assume that y varies directly as x. If y = 3, when x = 15, find the value of y when x = 75. A) 3 B) 15 C) 30 D) 45

Answer 1

y=15 B

Explanation:

First divide 15 from 75, which equals 5. Then multiply 3 by 5.

Answer 2

Explanation:

Answer:y=15

3 y

___=___

15 75

cross multiply

15y=225

divide both sides by 15

y=15