We have to do this thing in class to get the answer to how many tickets have been solved...
My teacher did most of it, but left us with this:
Let the number of $6 tickets be x.
Then the number of $10 tickets was 3x and the number of $15 tickets was 3x + 500.
$6 tickets = 6 + x
$10 tickets = 10 x 3x = $30
$15 tickets = 15x(3x + 500) = 7545.
6x + 30x + 45x + 7500 = 84450
We have to find how many of each ticket was sold.
($6, $10, $15)
Do you know how to work this out?
If you need any additional info, please tell me...