Given:
Student ticket price = $7
A group of 4 students and 3 adults paid $64 in all for movie tickets.
To find:
Each of the adult ticket cost.
Solution:
Let x be the cost of each adult ticket.
Then, cost of 3 adult tickets = 3x.
Cost of 1 student ticket = $7
Cost of 4 student ticket = $7(4)
According to the question,
[tex]7(4)+3x=64[/tex]
[tex]28+3x=64[/tex]
[tex]3x=64-28[/tex]
[tex]3x=36[/tex]
Divide both sides by 3.
[tex]x=12[/tex]
Therefore, the cost of each adult ticket is $12.