Get the answers you've been looking for with the help of IDNLearn.com's expert community. Join our community to receive timely and reliable responses to your questions from knowledgeable professionals.

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 an adult ticket. How much was the price of an adult ticket?