Question

There is a Saturday performance at a local theater. A theater charges $9 for an adult ticket and $4 for a child ticket. All 1020 tickets were sold and $7680 of revenue was brought in. How many adult tickets were sold?

Answer 1

Let x tickets sold be adults, then (1024-x) were of childrens tickets, 9x+(1024-x)4 = 7680. The above equation is for total money solve it you will get x=720 hence, number of adult tickets were 720 and number of child tickets were 300 :)

Answer 2

x = # of $9 adult tickets
y = # of $4 child tickets
so
1) x + y =1020
2) 9x + 4y = 7680
solve by graphing, substitution, etc.,
(x, y) = (720, 300)