Arithmetic › Ratio and proportion › Boys-to-girls ratios
Fair council representation by enrollment
Middle school · ●○○○○ 10 pts
The 7th and 8th grades have enrollments of 520 and 650 students respectively. The two grades have a total of 18 representatives on the Student Council. Assuming representation is fair when the seats are allotted in proportion to enrollment, how many representatives should the 8th grade have?