SOLUTION: the tickets to a concert cost $16.30 for the lower level and $5.50 for the upper level. A total of 16400 tickets were sold for a total amount of $183,080 How many upper level ticke

Question 128200: the tickets to a concert cost $16.30 for the lower level and $5.50 for the upper level. A total of 16400 tickets were sold for a total amount of $183,080 How many upper level tickets were sold?
Answer by ozymandias(9) (Show Source): You can put this solution on YOUR website!
Call the number of upper tickets = u
Since the total number of seats is 16400, the number of lower level musr be 16400-u
So 5.5u + 16.3(16400-u) = 183080
5.5u -16.3u + 267320 = 183080
10.8u = 84240
So u (upper seats) = 7800
And hence the number of lower seats is 8600.
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