To model the scenario described, we can set up two equations based on the information about ticket sales.
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Cost Equation: Each adult ticket costs $4 and each student ticket costs $2.50. The total revenue from ticket sales is $2,820. This gives us the equation: \[ 4a + 2.5s = 2820 \]
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Total Tickets Equation: The total number of tickets sold (both adult and student) is 900. This gives us another equation: \[ a + s = 900 \]
Summary of the equations:
- \( 4a + 2.5s = 2820 \)
- \( a + s = 900 \)
Solving the equations:
From the second equation, you can express \(a\) in terms of \(s\): \[ a = 900 - s \]
Now substitute \(a\) into the first equation: \[ 4(900 - s) + 2.5s = 2820 \] Distributing: \[ 3600 - 4s + 2.5s = 2820 \] Combining like terms: \[ 3600 - 1.5s = 2820 \] Subtracting 3600 from both sides: \[ -1.5s = 2820 - 3600 \] \[ -1.5s = -780 \] Dividing by -1.5: \[ s = \frac{-780}{-1.5} = 520 \]
Now substituting \(s = 520\) back into the equation for \(a\): \[ a + 520 = 900 \implies a = 900 - 520 = 380 \]
Final Result:
- Adult tickets sold (a): 380
- Student tickets sold (s): 520