The two purchasers, a and B, went to the same feed company twice to buy the feed. The price of the feed changed slightly, and the two purchasers' purchasing methods were also different. Among them, a purchased 1000 kg each time, and B spent 800 yuan each time, no matter how much feed they bought. Suppose the unit price of the feed purchased twice was m yuan / kg and N yuan / kg respectively (m, n are positive numbers, and m ≠ n) What is the average unit price of feed purchased by B? Which one is lower?

1+2+3+4+5+6+7+8+9…… How much is ten thousand?

500500

6.3.1.8 how to equal - 24

6/（1-3）X8=-24

Who can tell me where my book is
Solve as above

Who can tell me where is my book

How to calculate normal year or leap year

General year divided by 4, there is a remainder is a normal year, there is no remainder is a leap year
If you divide a hundred years by 400, the remainder is a normal year, and the remainder is a leap year

Why is one plus one equal to two

Because one apple plus another is equal to two apples

Xiao Yong, Xiao Li, Xiao Ming, Xiao Qiang and Xiao Gang will take part in the table tennis competition. Each of them will have one game and only one game. The winner will get 2 points
The result of the match is as follows. Xiao Yong and Xiao Li are tied for the first place. Xiao Ming is the third place. Xiao Qiang and Xiao Gang are tied for the fourth place. How many points did Xiao Ming get

Let Xiaoyong win Xiaoli, Xiaoyong can only win three games, Xiaoyong can also win three games, a total of 1 + 2 + 3 + 4 = 10 games, 10-6 = 4, Xiaoming can only win less than three games, more than one game is two games. 4 points

English translation
An analysis of the reasons for the loss of the advantages of made in China and its development direction
Help me translate in English

Discussions on the reasons for China's loss of manufacturing advantages and its future developing direction

Let's give an accurate introduction to the classification of angles. Let's talk about the conversion of degrees, minutes and seconds

Definition of angle: a figure composed of two rays with a common endpoint is called an angle. This common endpoint is called the vertex of the angle, and these two rays are called the two sides of the angle. Or, the figure formed by a ray rotating from one position to another around its endpoint is called an angle

A sealed rectangular glass can, 30cm long, 18cm wide and 12cm high. When it is placed horizontally, the water depth inside is 9cm. How deep is it when it is placed laterally?

The total volume of water is: 30 * 18 * 9 = 4860
Side: 4860 / (18 * 12) = 22.5 (CM)
Therefore, the water is 22.5cm when placed on the side