Algebra-1

Question Analysis
This problem involves selling two types of movie tickets with different prices, requiring us to find the number of adult tickets sold. It relies on creating a system of equations from the total number of tickets and total revenue.

Key Concept Explanation
A system of linear equations uses two equations to relate two variables. Here, let a = adult tickets, c = child tickets.

Step-by-step Solution
1. Define variables: a = adult tickets, c = child tickets.
2. Equations:
Total tickets:  →  (substitution).
Total revenue: .
3. Substitute  into the second equation:

Click "Show Answer" to reveal the answer and analysis