Question

The regular price of a child's entry ticket to a water park is $6 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 $78 for 1 adult ticket and 2 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.

78 =One half x + (x - 6)

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

$50

$56

$75

$81

Answer 1

Just solve the equation:
x/2 + x - 6 = 78
3x/2 = 78 + 6
= 84
x = 84 * 2/3
I think you can do it now.