Can some please explain how to do the math?

Answer:
12 students/year
Step-by-step explanation:
Make an equation [tex]5x=60[/tex]. [tex]x[/tex] is the enrollment drop per year and is what we have to find. It is multiplied by 5 as the drop of 60 took 5 years. Finally, 60 is the total drop in 5 years. To solve this equation, divide both sides of the equation by five and you have [tex]x[/tex]. [tex]x=12[/tex]. Since [tex]x[/tex] is the enrollment drop per year, this is your answer.