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?

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 :)

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