【资料图】
1、设采用空运的X万人次,采用海运的Y万人次。
2、4X+22Y=2900X+Y=500得X=450,Y=50答:采用空运的有450万人次,海运的50万人次。
本文分享完毕,希望对大家有所帮助。
【资料图】
1、设采用空运的X万人次,采用海运的Y万人次。
2、4X+22Y=2900X+Y=500得X=450,Y=50答:采用空运的有450万人次,海运的50万人次。
本文分享完毕,希望对大家有所帮助。
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