Dobbs bought 18 adult tickets and 90 student tickets.
Let’s use a system of equations to solve this.
Let be the number of adult tickets and be the number of student tickets.
We’re given two pieces of information:
1. The total number of tickets is 108:
2. The total cost of the tickets is $283.50:
Using the first equation, we can express in terms of as .
Substitute this expression for into the second equation:
Now, solve for :
Now that we know , substitute it back into :
So, Dobbs bought 18 adult tickets and 90 student tickets.