Question 1035515
...they sold 250 more student tickets than non student tickets...
<pre>
Let the number of non-student tickets be x
Then the number of student tickets is x+250


                        Money    Money
Type         Number     from     from      
 of           of        EACH      ALL
ticket      tickets    ticket   tickets
-------------------------------------------
student      x+250      $5       $5(x+250)
non-student    x        $9       $9x
-------------------------------------------
                         TOTAL = $7018



 The equation comes from the "Money from ALL tickets" column.
  {{{(matrix(4,1,Money,from,student,tickets))}}}{{{""+""}}}{{{(matrix(4,1,Money,from,non-student,tickets))}}}{{{""=""}}}{{{(matrix(5,1,Total,money,from,ALL,tickets))}}}

            5(x+250) + 9x = 7018

           5x + 1250 + 9x = 7018
               14x + 1250 = 7018    
                      14x = 5760
                        x = 412 = the number of non-student tickets.

he number of student tickets is x+250, which equals
                              412+250 = 662
                              So 662 student tickets.

Checking:  662 student tickets is $3310 and 412 non-student is $3708
            662 is 250 more than 412
            And indeed $3310 + $3708 = $7018
Edwin</pre>