To solve for the number of adult tickets sold, we can set up a system of equations based on the information provided.
Let:
- \( x \) be the number of adult tickets sold
- \( y \) be the number of children's tickets sold
We have two equations based on the problem's details:
-
The total number of tickets sold: \[ x + y = 125 \]
-
The total revenue from ticket sales: \[ 12x + 6y = 1170 \]
Now we can solve these equations step by step.
From the first equation, we can express \( y \) in terms of \( x \): \[ y = 125 - x \]
Next, we will substitute this expression for \( y \) into the second equation: \[ 12x + 6(125 - x) = 1170 \]
Now, simplify the equation: \[ 12x + 750 - 6x = 1170 \] Combine like terms: \[ 6x + 750 = 1170 \] Now, subtract 750 from both sides: \[ 6x = 420 \] Now, divide by 6: \[ x = 70 \]
So, the number of adult tickets sold is \( \boxed{70} \).
To find the number of children's tickets sold, we substitute \( x \) back into the equation for \( y \): \[ y = 125 - 70 = 55 \]
Now we can double-check our solution by verifying the revenue:
- Adult tickets sold = 70; Revenue from adult tickets = \( 70 \times 12 = 840 \)
- Children's tickets sold = 55; Revenue from children’s tickets = \( 55 \times 6 = 330 \)
- Total revenue = \( 840 + 330 = 1170 \)
The values check out, confirming that the answer is indeed correct: 70 adult tickets were sold. Thus, the final answer is \( \boxed{70} \).