Adult tickets for the school play cost 6 dollars in student tickets cost 4 dollars. 20 more adult tickets were sold and student tickets. If $270 was collected, how many of each type of ticket was sold?
+36916 a = adult tickets = s + 20
s = student tix
$ 6 (s+20) + 4 s = 270 solve for 's' the number os student tix then adult tix = s+20
