f + c = 12 so c = (12-f)
1210 f + 370 c = 8640
1210 f + 370(12-f) = 8640
1210 f - 370 f + 4440 = 8640
840 f = 4200
Your turn :)
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 $370 and first class tickets for $1210. She used her total budget for airfare for the trip, which was $8640. How many first class tickets did she buy? How many coach tickets did she buy?
1 answer
4 answers