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