某公交站早晨6:30发出第一辆车,然后每隔10分钟发一辆车,到晚上7:00共发出多少次车?

10 25 的最小公倍数是50
所以是8点50分

设乘客x时刻到达,公交车y时刻到达,等待时间为y-x （y>x)
求P(y-x

设公交车的速度是A,发车间隔是T,小张的行车速度是B；
那么公交车之间的距离是AT,
根据题意得出：AT/（A-B)=12=>AT=12(A-B)……①
AT/（A+B)=4=>AT=4（A+B)……②
把①式代入②式得出12(A-B)=4（A+B)
解题得：12A-12B=4A+4B
8A=16B
A=2B……③
把③式代入②式得出：2BT=4（2B+B）
解题得：2BT=12B
T=6

The newspaper have existed for hundreds of years of history, now the peoplewill use the newspaper inadvertently in the enjoyment of modern media at the same time, for example in the bus station waiting for a bus, at the table to eat breakfast. At the same time, the newspaper has the modern media has no advantages: portability, unlike television computer by space and power constraints, and use the tape media on the body more or less harm, such asradiation and long time use of eye injuries. Now people have the habit of the existence of the newspaper, many facilities are not a TV computer can bring us.
Therefore, the newspaper is not affected by the modern media threat and die in a short period of time.

He picked the cases up and ran to the bus stop.

1 has been to north walking for about 150 meters.Then turn right.It was in the north
2 bus station near 30 meters park is prohibited in the vehicle
3 into the city banned whistling
4 in the designated area allows vehicles switching and whistling
I think he is not fit for the job.

以甲车为参照物,乙车是向后运动的,则有可能的情况为
①乙车的速度小于甲车的速度
②甲车静止,乙车向后运动

到公交站花了我20分钟
It took me 20 minutes to get to the bus stop.
It takes sb.+ 时间/金钱 + to do sth.花费某人时间/金钱做某事
get to 到达 bus stop公交车站
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Xiao Ming lives in Beijing.It's about 5 kilometers from his home to school.He usually goes to school by bike.The bike ride takes about 40 minutes.And there is a bus stop near his home.So when the weather is bad,he takes the bus to school.The bus ride takes about 20 minutes.

10路车的第15班和15路的第8班 在上午9点会同时发车

1、10/30.2、先将根号1.5化为根号3/2,然后分子、分母同时乘以根号2.3、1-（0.8*0.3）,0.8*0.3.

picked up

连接mn,并做线段mn的垂直平分线交公路于点p,则P点为所求

1路车可能性大,2路车时间间隔短,很容易错过,3路车时间长所以在3路车来之前1路或者2路已经到达.