Answer :
Step-by-step explanation:
Let A be the number of adult tickets and
let S be the number of student tickets.
From the question we know that
A + S = 480
The revenue from the adult tickets is
A x $8
and the revenue from the student tickets is
S x $5
So the total revenue is
A x $8 + S x $5 = $3369
We can change the first equation to
S = 480 - A
and then plug this into the second equation to get
A x $8 + (480 - A) x $5 = $3369
Simplify the equation to obtain
A = 323
Plug this value into the first equation to obtain
S = 157