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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?

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  1. 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 :)

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    Damon

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