Answer:
532 student tickets were sold
Step-by-step explanation:
Let x be the no. of student's tickets sold
Let y be the no. of non student's tickets sold
We are given that 817 tickets were sold in total
So, --1
Cost of 1 student's ticket = $2
So, Cost of x student's ticket = 2x
Cost of 1 non - student's ticket = $3
Cost of y non - student's ticket = 3y
We are given that 817 tickets were sold, for a total of $1919
So, ---2
Solving 1 and 2
Substitute the value of y from 1 in 2
Substitute the value of x in 1
Hence 532 student tickets were sold