9514 1404 393
Answer:
- 150 lower level
- 200 upper level
Explanation:
Let x represent the number of lower-level tickets sold. Then the total revenue is ...
35x +25(350-x) = 10250
10x +8750 = 10250 . . . simplify
10x = 1500 . . . . . . . . . subtract 8750
x = 150 . . . . . . . . . . . lower-level tickets sold
350-x = 200 . . . . . upper level tickets sold
There were 150 tickets sold for the lower level, and 200 sold for the upper level.