Bradford T. answered 12/23/20
Tutor
4.9
(29)
Retired Engineer / Upper level math instructor
Let x = adult tickets and y = child tickets
x + y = 1000
12x + 6y = 9780
Subtract 6 times the first equation from the second equation:
6x = 3780 --> x = 630 Adult tickets
625 + y = 1000 --> y = 370 Child tickets
James M.
12/26/20