OpenStudy (anonymous):

[WILL FAN AND GIVE MEDAL]In a bin containing 500 marbles, 160 are red, 220 are blue, and 120 are green. In a bowl of 25 marbles scooped from this bin, how many would be expected to be blue? A. 6 B. 8 C. 11 D. 22

hero (hero):

Solve the proportion: $\frac{220}{500} = \frac{x}{25}$