Let s ask you a question 20

This question is very old. As long as you distinguish the income between the boss and the guy and the guest, don't mix it, the three of them each paid 9 yuan, but you can't add the two dollars from the waiter, but you should subtract the 2 yuan that the waiter stole and take, that is, 27-2=25, which shows that they have a total of 27 yuan, but the waiter stole two dollars, and the boss actually got 25 yuan, 27 + 2 = 29 is actually meaningless, in order to confuse the public.

There was a problem when I asked! Find out how much money should be cut off for the money spent! This should be a mistake!

It's easy. Judging from the expenditure of three people: each person first took out 10 yuan, and then each person returned to 1 yuan, so the total amount of money taken out by the three people is 3 * (10-1) = 27 yuan.

And the 27 yuan was spent like this, 25 yuan was the room fee, and 2 yuan was taken away by the waiter. That is, 25 + 2 = 27 = 3 * (10-1). In this way, the money they took out was the 25 yuan that the boss got and the waiter got 2 yuan.

The expenses are equal to other people's income, so the 1 yuan does not exist. It's the confusion in people's thinking that causes that there is 1 yuan. From the boss's point of view, he first got 30 yuan, and then returned 5 yuan, 3 yuan of the 5 yuan was taken back by the three people, and 2 yuan was taken by the waiter, that is, the 30 yuan at the beginning is like this, there are 25 yuan is the room fee, 3 yuan belongs to the three people, and 2 yuan belongs to the waiter, that is, 30 = 25 + 3 + 2

In this way, the 1 yuan does not exist.

<> circuits are converted into phasor models, as shown in the figure above. Because the angular frequency of the power supply is not known, the inductive reactance is written as: j2 (

Obviously: u1 (phasor) = u3 (phasor). False reputation of other party banquet course is:

Node 1: The node voltage equation is listed according to the KCL as follows:

The standard form of writing is:

In the same way, node 2 can directly write the standard node voltage equation in the ambiguous segment

Node 3: <>

Brother Tangerine replied:

a) The learning rate of the applicant = 9 10 = 90%, according to his learning curve, the required time for the 1000th operation can be obtained, so this person should be hired.

b) At a learning rate of 90%, the increase coefficient of the 10th operation is , so the 10th operation time is .

Dividing both sides of the equation by 6 equals t = 84 6

So the result is equal to t=14

6t=84, the solution equation is t=84 6, and the final result is t=14

According to the properties of the equation, divide the two sides of the equation by six, and t is equal to 14

Hello, multiplier = product of another multiplier, t=84 6=14Nozomi adopt!

The title seems to be wrong.

Xuan Wei Ai, hello:

Solution: Let ad=dc=x, then ab=ac=2x, and let the bottom edge bc=y in the first case:

x+2x=15 ，x+y=6。The solution is x=5 and y=1. The side length of the triangle is 10,10,1

The second scenario:

x+2x=6， x+y=15。The solution yields x=2 and y=13. The side length of the triangle is 4, 4, 13, and the trilateral relationship of the triangle is not satisfied, so the resulting triangle does not exist.

So the three sides of the triangle are 10, 10, 1.

[Analysis].

From the meaning of the title, the box contains red, yellow, blue, green four colors of balls, to ensure that at least 5 small balls of the same color, the worst case is to take out 4 of each color, that is, take out 16, 4 red, 4 yellow, 4 blue balls, 4 green balls, at this time, as long as you take any one more, that is, take out 4 4 + 1 = 17 to ensure that at least 5 small balls are the same color, according to this solution.

Answer] Solution: 4 4 + 1 = 17 (pcs).

A: At least 17 balls must be touched to ensure that 5 balls are of the same color.

So the answer is: 17.

4 x ( 5 a 1 ) 1 = 17 (pcs).

The reason is that if you take 4 of each color, you will have 16, but now you can make 5 as long as you take one more of any color. In fact, if you are lucky, you may be able to take 5, but for the sake of insurance, according to the title, the worst-case scenario is to take 17.

Remove at least 17 balls from the bag at a time.

This is a detailed description.

It shows the determination and strong will of Yulai to protect the traffic officers and fight the enemy to the end; It reflects the determination of the Chinese people to defend the motherland with their blood and lives. This sentence not only writes the scene at that time, but also skillfully links blood and patriotism, and the unbridled laughter will make people have rich imagination and endless aftertaste.