Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah a total of 12 people took the trip. She was able to purchase coach tickets for $130 and first class tickets for $910. She used her total budget for airfare for the trip, which was $8,580. How many first class tickets did she buy? How many coach tickets did she buy?
How am I supposed to know when there could be multiple outcomes?
suppose there were c coach tickets, and f first-class tickets. Now, what do you know?
c+f = 12
130c + 910f = 8580
Now just solve for c and f.