Final answer:
By setting up a system of linear equations based on the number of tickets and total sales, we calculate that 150 lower-level tickets and 200 upper-level tickets were sold.
Step-by-step explanation:
To solve this problem, we need to set up a system of linear equations using the information provided about the ticket prices and total sales.
Let's let L represent the number of lower-level tickets sold and U represent the number of upper-level tickets sold. We can create two equations based on the following conditions:
- The total number of tickets sold is 350: L + U = 350
- The total revenue from selling the tickets is $10,250: 35L + 25U = 10,250
To solve the system, we can use substitution or elimination. We'll utilize the elimination method:
- Multiply equation (1) by 25: 25L + 25U = 8,750
- Subtract this new equation from equation (2): (35L + 25U) - (25L + 25U) = 10,250 - 8,750
- Solve for L: 10L = 1,500, so L = 150
- Substitute L = 150 into equation (1): 150 + U = 350, so U = 200
Therefore, 150 lower-level tickets and 200 upper-level tickets were sold. The correct answer is B) 150 lower-level tickets and 200 upper-level tickets.