Question

For a particular​ event, 850 tickets were sold for a total of ​$5549. if students paid ​$5 per ticket and nonstudents paid ​$8 per​ ticket, how many student tickets were​ sold?

Answer 1

5×s+8×n=5549
s+n=850
n=850-s
5×s+8(850-s)=5549
5×s+6800-8×s=5549
-3×s=-1251
s=417
417 student tickets were sold