Who can solve this problem? 20

Question 1: The key point is to grasp the cost of paying and the income obtained, the cost of paying: the cost of gifts is 18 yuan + the change for young people is 79 yuan + 100 yuan of fake money (0 yuan) for the neighborhood + 100 yuan is returned to the neighborhood = 197 yuan, and the income obtained:

The 100 yuan fake money (0 yuan) given by the young man + the 100 yuan change given by the neighborhood = 100 yuan, and the actual loss of Boss Wang is 197 yuan - 100 yuan = 97 yuan.

Question 2: <>

Question 1: The money lost by Boss Wang should be equivalent to what the young man gave, but the loss of the gift is calculated at cost price, so it is 18 + 79 = 97 yuan.

Question 2: On the first trip, the first team of mothers and children crossed the river first, and then the first team of mothers sailed back.

On the second trip, the first and second mothers crossed the river, and then the second team of mothers sailed back, leaving only the second and third mothers and children on the shore.

On the third trip, the mothers of the second and third teams sailed across the river, and then the children of the first team drove back to pick up the children of the second team to cross the river.

On the fourth trip, the children of the first team and the children of the second team crossed the river, and the children of the first team went back.

On the fifth trip, the children of the first team and the children of the third team crossed the river.

All cross the river safely.

Boss Wang entered 18, sold 21, and earned 3 yuan is the value created for Boss Wang, from an economic point of view, Boss Wang lost 100 yuan, but not counting the 3 yuan, Boss Wang only lost 97 yuan. First of all, the 100 yuan of Boss Wang and the neighbor is an equivalent exchange, there is no one who loses and who earns, from the perspective of the person who bought the owner, paying a fake money is equivalent to getting 79 yuan and 18 yuan without giving money.

The first question should be a loss of 76 yuan.

The second question, according to my understanding, the mother of the first team can take the piglets of the second team, the mother of the second team can take the piglets of the third team, and the piglets of the first team can be with the mother of the third team.

The eight elements of the interview assessment include: comprehensive analysis ability, verbal expression ability, planning, organization, coordination ability, adaptability, self-emotional control, interpersonal cooperation awareness and skills, job search motivation and the matching of the proposed position, and demeanor.

During the interview process, attention should be paid to the necessary etiquette and clear and complete thinking. Here are 15 points for reference:

1. Respond with a smile and thank you after hearing the examiner's blessing for passing the written test.

2 When the examiner has finished reading the introduction and given instructions to answer the exam questions, say "thank you" to the examiner, and then say, "Please let me think about it" or "Please let me think about it for a few minutes", "Okay, I'll prepare".

3 Speak Mandarin: The speed of speech should be moderate, and Lu Jinlead is slow.

4 The four questions can be answered one by one, and each question can be thought about a little at the moment. After finishing a question, say "Done".

5. Don't think about it too long, 1-2 minutes for each topic, you can write a draft, write the main points, if you really don't know where to start for a while, you can use a sentence such as "about" to shorten the thinking gap, which also prolongs the thinking time without leaving a trace; You can also repeat the question, which not only buys you time to think, but also shows that you attach importance to the answer.

6 Try to use "one, two, three......"First, second, third......"and so on; Answer bullet points to show that your thinking is clear and organized, and it will also make it easier for the examiner to listen to you clearly.

7 If you don't hear the question clearly or you don't know what to do at once, you can ask the examiner to read the question again, but not more than twice. In some areas, there is no question of the question book.

8 Don't waste your time when you can't think about it, admit it frankly, and try to answer the next question.

9. Allocate the time for answering each question reasonably, not too short, and do not overtime. It ends immediately after the timeout.

10 Keep the volume at a moderate level so that the examiner can hear and hear clearly. Take care of your throat a few days in advance, and don't cough or spit too much. If you have a cold, explain it to the examiner and ask for your understanding.

11 Always maintain a high level of concentration, no matter what situation you encounter, control your emotions, don't argue with the examiner, don't feel any tiredness, and don't fidget.

12 When appropriate, make good use of body language (mainly nodding, gestures, etc.) to make up for the lack of verbal expression, but not too much. It is best to stand up and speak with the consent of the examiner.

13 There may be occasional pauses in the answer, but not too long. There can't be "ah", "um", "this", "that", etc.

14. When drawing in the morning, the questions should be as detailed as possible; When the lottery is drawn in the afternoon, the questions should be concise, preferably with innovative highlights, and timely pay tribute to the examiner for their hard work in the morning.

15 When all is said and the examiner asks if there are any supplements, do not say too much, and conclude with "There is nothing to add, thank you for your hard work".

This question should be used in pediatrics, but the solved problem can basically be correct, and this question is a fifth-grade question.

First of all, if you want to make sure that this is a middle school math problem, then set the linear equation to x a +y b=1 a, where b is the horizontal and ordinate values of a and b respectively. Parallel to the elliptic equation, it can be obtained separately, a, b are denoted by x. Then the area of the triangle s=ab 2

=3 times root number 2 - 3 (root number 2) +1 + root number 2) + (1 - root number 2) = 9 (root number 2) +2

9/2 times the root number 2+2

I can't get a score, so I can only describe it like this).

The root number is m -4>=0 and m >=4

4-m²>=0,m²<=4

So m = 4

Because the denominator m-2≠0

So m=-2

So n=(0+0+2) (-2-2)=-1 2, so mn=1

So the original formula = 1

It makes sense to have both m -4 under the root number and 4-m under the root number, then m -4=0 m= 2

m-2 is the denominator and cannot be 0

m is not equal to 2m=-2

n=2/(-2-2)=-1/2

Let the water depth be x feet, then the lotus Zheng Zheng is high (x feet, according to the meaning of the title according to the Pythagorean theorem x 2 2 2 (x split and 2

Solution: x Answer: Bathymetry.