A jazz concert brought in $143,273 on the sale of 8,692 tickets. If the tickets are sold for $10 and $20 dollars, how many of the $10 dollar ticket were sold?
! NOTE ! Will someone please actually show the individual steps and not just "Here's the first equation, here's the second, solve both of them"?
You don't even have to give the answer. I just would really like a DETAILED breakdown of the steps so I can solve for myself. Thanks!