Raymond B. answered 06/01/21
Tutor
5
(2)
Math, microeconomics or criminal justice
8S + 10N = 12800
S+ N = 1590
8S+ 8N =8(1590) subtract from 1st equation
2N = 12,800- 12720 = 80
N = 40 non-student tickets sold
S =1590-40 = 1550 student tickets sold
10(40) + 8(1550) = 400+12400 = 12800