Question

Five hundred tickets were sold for a Saturday evening performance of a play. The tickets cost $ 7.50 for adults and $4.00 for children. A total of $3312.50 was received for all the tickets sold that Saturday evening. How many adults attended the play.

Answer 1

Answer: A+C=500

7.5A+4.75C=3351.25

C=500-A

7.5A+4.75(500-A)=3351.25

7.5A+2375-4.75A=3351.25

2.75A=976.25

A=355 adults ($2662.50)

C=500-A=145 children ($688.75)

Explanation: