Question

A family purchased tickets for a concert. they paid a total of $90 for 7 adult tickets and 12 child tickets. the price of a child ticket was two-thirds the price of an adult ticket. how much was the price of an adult ticket?

Answer 1

Price of an adult ticket is $6

Step-by-step explanation:

7 adult tickets and 12 child tickets are equivalent to

(7 + 2/3 ⋅ 12) = 7 + 8 = 15 adult tickets.

So the price of an adult ticket is 90/ 15= $6