Question

The ratio of y to x is 21 to 7. If x is 10, what is the value of y?

A)3
B) 30
C) 70
D) 210

Answer 1

The answer is 30, or B. If you neee an explanation let me know

Answer 2

B

Explanation:

This is because Y is exactly 3 times the amount of x so 10x3= 30