A drama club sold 120 child tickets and 80 adult tickets to a play. A child ticket cost $3 less than an adult ticket. The club collected a total of $640 from ticket sales. What is the cost of an adult ticket and a child ticket

Question

anonymous · Answer

cost total=640
#child tickets=120
#adult tickets=80
c=child ticket cost
a=adult ticket cost
c+3=a
640=120c+80a
subbing in a
640=120c+80(c+3)
640=120c+80c+240
200c=400
c=2 dollars
2+3=a
a=5 dollars