Hi Jerry,
I spent years and years in Lawrence, KS. Kansas is a beautiful state!!!
Need 2 equations. 1 that deals with tickets. 1 that deals with money.
S = student ticket
N = NONstudent ticket
All of the tickets are either S or N, so the ticket equation is
S + N = 940
(# of student tickets sold + # of nonstudent tickets sold = ALL of the tickets sold.)
The money works just like it works when you go to a movie:
The cost of a student ticket * the number of student tickets sold + The cost of a NON ticket * the number of NON tickets sold must = ALL of the MONEY
So, the money equation is
3S + 5N = 4030
So you have a system of equations that needs to be solved. In the end, the answer is the value of "S", then number of student tickets sold.
S + N = 940
3S + 5N = 4030
Now solve either by substitution (solve top equation for N = 940 - S, and substitute this for "N" in the bottom equation)
OR
use elimination (multiply whole top equation by (-5), then add vertically to eliminate the variable "N" and solve for "S")
(I got 335 Student Tickets sold)