Let's denote the number of floor seats sold as \( x \) and the number of balcony seats sold as \( y \).
We have two pieces of information that lead to the following system of equations:
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The total number of tickets sold: \[ x + y = 72 \]
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The total revenue from ticket sales: \[ 8x + 6y = 516 \]
We can solve this system step-by-step.
First, let's solve the first equation for \( y \): \[ y = 72 - x \]
Now, we can substitute this expression for \( y \) into the second equation: \[ 8x + 6(72 - x) = 516 \] Distributing the \( 6 \): \[ 8x + 432 - 6x = 516 \] Combine like terms: \[ 2x + 432 = 516 \] Subtract \( 432 \) from both sides: \[ 2x = 84 \] Divide by \( 2 \): \[ x = 42 \]
Now that we have \( x \), we can find \( y \): \[ y = 72 - x = 72 - 42 = 30 \]
Thus, the number of tickets sold is:
- Floor seats (x): 42
- Balcony seats (y): 30
To summarize, 42 floor seats and 30 balcony seats were sold.