Set up a proportion:
[tex] \frac{dollars}{students} = \frac{dollars}{students} [/tex]
[tex] \frac{95}{20}= \frac{x}{162} [/tex]
Now cross multiply:
[tex]95*1620=15390[/tex]
[tex]20*x=20x[/tex]
Set it up as an equation:
[tex]15390=20x[/tex]
Divide both sides by 20:
[tex]15390/20[/tex]
And you get:
x=769.5
But you cannot have a half of a student so you will round it up:
x=770 students.
