first class --- x
coach ------- 9-x
1070x + 380(9-x) = 6180
solve for x
take it from there, (same type as your other post)
Sarah took the advertising department from her company on a round trip to meet with a potential client. A total of 9 people took the trip. She was able to purchase coach tickets for $380, and first class tickets for $1070. She used her total budget for airfare for the trip, which was $6180. How many first class tickets did she buy? How many coach tickets did she buy?
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