Question

Seventy-five percent, or 15, of the students in Emily's homeroom class are going on a field trip. Two-thirds, or 12, of the students in Santiago's homeroom are also going on the field trip. Which class has more students.

Answer 1

If E= Emily's homeroom class students, and S = Santiago's homeroom class students then

`\begin{gathered} 0.75E=15 \\ (2)/(3)S=12 \\ \\ E=(15)/(0.75)=20 \\ S=(12\cdot3)/(2)=18 \\ \\ \text{ Then Emily's class has more students!} \end{gathered}`