The regular price of a child's entry ticket to a water park is $9 less than that for an adult's. The park offers half off of all entry tickets during the off-peak season. The Sandlers paid a total of $132 for 1 adult ticket and 4 child's tickets to the water park during the off-peak season. The following equation represents this situation, where x represents the regular price of an adult ticket.

Question

anonymous · Answer

$$132=\frac{ 1 }{ 2 }x+2(x-9)$$

anonymous · Answer

What is the regular price of a child's ticket?

kropot72 · Answer

To solve the equation for x first remove the brackets giving
$$132=\frac{x}{2}+2x-18$$
Now group the terms in x. Can you do that by addition?