假设乙速度为x,甲速度为nx,则有
(x+nx)ah=(nx-x)bh
(n+1)xah=(n-1)xbh
nah+ah=nbh-bh
ah+bh=(bh-ah)n
n=(ah+bh)/(bh-nh)
答:甲速度是乙速度的 (ah+bh)/(bh-nh) 倍
甲乙两人从两地相向而行ah相遇同向而行bh甲追上乙,求甲速是乙速的 倍,且是一元一次
甲乙两人从两地相向而行ah相遇同向而行bh甲追上乙,求甲速是乙速的 倍,且是一元一次
数学人气:788 ℃时间:2020-06-26 23:34:25
优质解答
我来回答
类似推荐
猜你喜欢
- 1碳酸钾和硝酸银
- 21与100是互质数吗?
- 3there's something wrong with my watch.的否定句 there isn't anything wrong with my watch.
- 4简算 101除以10/111减十一又十分之一
- 5北京有故宫,它有500多年的历史.(用英语怎么说)
- 6重读闭音节到底是什么?为什么clean,break不双写?
- 7either of与neither of的区别
- 8when are you leaving?i'm not sure____.A,still B yet C but D although
- 9短文填空the word hobby is an interesting word.everyone may have one thing to do,and
- 10_____ important piece of advice it is!