For a school drama performance, student tickets cost $5 each and adult tickets cost $10 each. The sellers collected $3,570 from 512 tickets sold. How many student tickets were sold?
+36916 x = student tix then adult = 512- x
revenue:
$ 5 * x + $ 10 * (512-x) = $ 3570 solve for x, the number of student tix
