Ask him what the speed of riding a bicycle is, and the speed of riding a horse is several kilometers

The distance from your home to the train station is S

The S 30+ formula is used to start from Xiao Ming to leave home and how much time there is in the train, where the equation is hours, that is, the 15 minutes given in the question).

solution = km).

It can be seen that Xiao Ming is still an hour away from home and the train departs).

Now Xiao Ming plans to arrive at the train station 10 minutes before the train starts, and asks him what the speed of the bike is, which can be set to x

is the 10 minutes given in the question).

The solution is x=27 (km-h).

Let the speed of the train be a (the speed is 60a per hour), and the distance from Xiao Ming's house to the railway station is b, and two formulas can be obtained.

1. b (30 60) + 15 = b a i.e. 2b + 15 = b a2, b (18 60) -15 = b a i.e. 10b 3-15 = b a 2b + 15 = 10b 3-15

30=4b/3

90 = 4bb = km.

Substitut Equation 1, i.e. 45+15=

a = kilometers in minutes.

Now Xiao Ming plans to arrive at the train station 10 minutes before the train starts, and set Xiao Ming's speed to c.

1350/c=50

c=1350/50

c=27

If the speed is 18 kilometers per hour, the time taken by Xiao Ming to arrive at the railway station is t, then the distance from Xiao Ming's home to the railway station is s=18t, and the speed is 30 kilometers per hour when s=30 (t-30) is calculated to be t=75, s=1350, 10 minutes in advance, that is, the time is T-25, the time is 50 minutes, and the speed is 1350 50=27 kilometers.

The speed of horseback riding is usually between 10 and 15 kilometers per hour. Disturbance.

The answer to this question is actually in the physiology of horses, whose gait determines their speed range. The gait of a horse can be divided into three types: gait, galloping, and galloping, and the corresponding speed is also different. The gait is the slowest, with a speed of about 2 to 5 kilometers per hour; The galloping speed is 10 to 15 kilometers per hour; Dashing speeds can reach 40 to 50 kilometers per hour.

Of course, the specific speed also needs to consider factors such as the type and size of the horse.

Horseback riding is no longer common in many places, but for some people, it is still a traditional mode of transportation and sport. In ancient times, people relied on horses for long journeys, but in modern times they are seen more as a form of sport and recreation. Some equestrian enthusiasts will use equestrian sports to exercise their physical fitness, cultivate their endurance and perseverance.

At the same time, equestrian sports can also bring pleasure and relaxation.

In addition to equestrian sports, modern people also use the excellent qualities of horses for exploration and work. In some remote areas, horses are still one of the main means of transportation for people to carry out field exploration and deliver supplies. These traditional uses have been diminished by advances in machinery, but the care and protection of horses remains a shared human responsibility.

Therefore, the pleasure and speed of horseback riding is not the whole story of horseback riding, but a way for people to exercise, recreation and production. By getting to know the horses better, we can better protect and get to know our good friends. <>

Xiao Ming's cycling speed: per minute;

Flower riding speed: 2 5=;

Bright and bright.

Xiao Ming's speed = minutesThe speed of the floret = 2km 5 minutes = minutesMinutes, minutes, and minutesXiao Ming's speed is fast.

Find out how many kilometers the flower travels per minute and compare.

Xiaohua per minute, so Xiao Ming rides fast.

Let the speed of cycling be x and the speed of walking be y

then x-y=27

x y=3 is solved to get x=,y=

Solution: Walking speed: 27 (3-1)=

Cycling speed:

Approximately 3m s

3m s=3 3600m h=

It's about 10 kilometers an hour, which is the speed of Kai Lee, which is generally faster than riding a bike, and it is very dangerous if it is faster.

The speed of cycling is faster than the speed of walking, and this sentence indicates (c.).In the same amount of time, a cyclist travels longer distances than a person on foot).

The speed of cycling is faster than the speed of walking, and this sentence indicates (c.).

What we mean by velocity refers to the distance that the object advances in a unit of time, that is, the ratio of distance to time, if you want to compare the magnitude of the velocity, you should first control the variables, such as: the distance that is weighed in the same time or the length of time taken in the equal distance, a, the time used is not stated, a is wrong, b, the speed of the time taken by the hidden silver through the equal distance is fast, b is right

c. In the same time, the speed of the short distance is small, and C is wrong

d and b are right, so the stove is wrong to block the feast

Therefore, choose B

Xiaogang: 1 3 = 1 3

km) km;

A: Xiao Ming rides faster