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Mathematics, 22.06.2019 12:20 dpazmembreno

Foi a51. ticket sales. tickets for a train excursion were $120 for a sleeping room, $80 forberth, and $50 for a coach seat. the total ticket sales were $8600. if there were 20more berth tickets sold than sleeping room tickets and 3 times as many coach ticketsas sleeping room tickets, how many of each type of ticket were sold​

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Foi a51. ticket sales. tickets for a train excursion were $120 for a sleeping room, $80 forberth, an...
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