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?

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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?

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?
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?

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?
Jay's speed is his distance (220 yd) divided by his time (given in question).John's speed is his distance (10 yds short of the total distance) divided by the time,which is when Jay's finishes (30 secs).Once you get John's speed,his total time can be found by:time = 220/his speed.

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? 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? 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 John John and Jay Zhou are both my,后面填什么 John jay college怎么样 John C Jay是谁 John and Jay Zhou are both my,后面单词的音标是hiərəuz the ballad of john and yoko 中文歌词 run to the tree and help them go to the(?)to jump and run broke she door run the away and run and run and the s ______the student were talking about were jay chou and jolin When Jay Chou ________ the airport,his fans clapped and screamed with joy.(到达) 英语翻译John called on the people in her hometown of california,to take on a multinational company.The company planned to run a natural gas pipeline(管道)through low-income neighborhoods.John spoke up and gave speeches against the idea.With the 英语翻译二.用所给的单词适当形式填空1.Let's­­___(walk) on the beach.2.John and Jim like__(play) football.They playing football with __(they) classmates now.3.Look,the cat___(run).She can___(run)very fast.4.The elephant likes t