<PRE><B>Question 664774</B>
an auditorium has 500 balcony seats
1800 main- level seats. 
tickets for balcony seats will cost 15 dollars less than tickets for main- level seats,
 sellout performance will fetch  84,500

main level seats cost x----------- 1800 seats
balcony seats cost x-15------------500 seats

1800x+500(x-15)=84500

1800x+500x-7500=84500
2300x= 84500+7500
2300x= 92000

x= 92000/230

x= 400

main level seats cost $400
balcony seats cost x-15 $385




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