英语数学问题,谢谢!John and Jay run the 220-yard dash , and Jay wins

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英语数学问题,谢谢!
John and Jay run the 220-yard dash , and Jay wins the race by 10 yards . if Jay runs the race in 30 seconds , what is the rate of each boy in yards per second? how long would it take John to run the 220-yard dash?谢谢

jay 7.33 y/s
john 7y/s
31.42 seconds
再问：您能告诉这道题的翻译吗？
再答：先告诉我对不对？
再问： jay:7又3分之一 john:7 31.4
再答：那就是对咯 Jay 和John比赛220米跑。 Jay领先10米赢了John Jay跑了30秒那么30秒John跑了210米 Jay速度是220/30=7又3分之一 John速度是210/30=7 John跑220米的时间是220/7=31.42

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