Question

Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah a total of 10 people took the trip. She was able to purchase coach tickets for $160 and first class tickets for $1,120. She used her total budget for airfare for the trip, which was $3,520. How many first class tickets did she buy? How many coach tickets did she buy?​

Answer 1

c + f = 5

120c + 1140f = 2640

f = 5 - c

120c + 1140(5 - c) = 2640

120c + 5700 - 1140c = 2640

1020c = 3060

c = 3 coach tickets

Explanation: