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Anonymous users2024-02-16Sell 3200 * 2 5 = 1280 in the first week sell 3200 * 3 8 = 1200 in the first week and sell 80 less than in the second week.
There are 3200-1280-1200=720 left.
Extended Material: How to Solve Fractional Questions.
1 The first step is to find the correct unit "1", the most critical step of the score application problem is to find the unit "1", which is the first question whether you are right or wrong in doing the question. So how to find the unit "1"? Compared with which quantity, then this quantity is the unit "1".
For example:1There are 350 students in the sixth grade of the school.
There are 1 10 more people in 5th grade than 6th grade, how many are in 5th grade? In this question, the number of fifth-graders is compared with the number of sixth-graders, so the number of sixth-graders is the unit "1". Simply put, in the question'than", "occupy","Yes"The quantity after these keywords is the unit "1", and some questions are not obvious, so the earlier quantity is the unit "1", such as:
2.The original price of a piece of clothing is 260 yuan, and the shopping mall is engaged in **20% off**, how much is it now? There is no keyword in this question, so the earlier **, that is, the original price, is the unit one.
2 The second step is to determine whether the question is a multiplication of fractions.
The application problem, or the division of fractions.
Applications. How can you tell? If the unit "1" is known in a problem, then it is a multiplication problem of fractions.
If the unit"1"It is unknown and needs to be found. Then it belongs to the division of fractions. For example:
The above 1 question belongs to the application problem of fraction multiplication. The column formula is: 350x(1+1 10), another example:
3.There are 300 students in the sixth grade of the school. 1 6 more than the number of 5th graders, how many people are in 5th grade?
This question unit"1"It is the number of people in the fifth grade, it is unknown and needs to be solved, so it belongs to the application problem of fraction division. Listed as: 300 (1+1 6).
3 The third step is to find the correct corresponding fraction for the fraction division problem. In the fraction division problem, the difficulty is to find the "corresponding fraction", and many students are wrong here. For example:
The score of 300 students in the sixth grade in question 3 above is (1+1 6). You can only divide them, otherwise you are wrong, and the wrong answer is: 300 1 6;300÷（1-1/6）。
4 The fourth step is to perform the calculation in columns, which is relatively simple, as long as the calculation can be done correctly.
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Anonymous users2024-02-15If both the first and second weeks are 2 5 of the total number of sells, 3 8 columns are:
720 (only).
A: There are 720 left.
The fraction is calculated as follows:
3200 2 5 = 1280 (the number of pieces sold in the first week) 3200 3 8 = 1200 (the number of pieces sold in the second week) 3200 - (1280 + 1200) (total - sold in the first week and sold in the second week = left).
720 (only).
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Anonymous users2024-02-14There were 3,200 chickens on the farm, 3 8 of the total number sold in the first week, and two-fifths of the total number sold in the second week.
Hello, I am inquiring for you here, please wait a while, I will reply to you right away There are two kinds of comprehensive calculations.
The first is: 3200 3 8 + 3200 2 5 = 2480 (only).
A: A total of 2,480 were sold.
The second is: 3200 (3 8+2 5).
Approximate =80 31
A: A total of 2,480 were sold.
I hope the above is helpful to you If you are satisfied with me, please give me a thumbs up
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Anonymous users2024-02-13The farm sells 1,285 chickens in the first week, which is 7 8 200 more than the second week, and how many are sold in two weeks.
Hello, breeding hail auction to sell chickens, the first source rock used 1285 more than 200 in a week, and sold a total of 1285+ (1280-200) in two weeks.
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Anonymous users2024-02-12Sold chickens in the second week = (1285-200) 7 8 = 1085 8 7 = 1240 chickens.
A total of two weeks of cracked lead chicken return width = (1285-200) 7 8 + 1285 = 1240 + 1285 = 2525 leakage source bright.
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Anonymous users2024-02-11Total = Sell = 3200 3 8 (1+1+.)
2640;
Hello, it's not easy to answer the question.
Thanks if it helps.
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Anonymous users2024-02-103200 2 5 = 1280 (only).
3200 3 8 = 1200 (only).
If you really want to say it, it should be 1200 1280 = 80 (only) and the remaining 3200 1280 1200 = 720 (only).
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Anonymous users2024-02-09Sold more in the first week than in the second:
3200x(2/5-3/8)=3200x1/40=80
Remaining: 3200x(1-2 5-3 8)=3200x9 40=720
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Anonymous users2024-02-08There are 3,200 chickens on the farm, which sell 3 8 in the first week and 2 5 in the second weekA total of 2480 pieces were sold in two weeks.
3200x（3/8+2/5）
3200x3/8+3200x2/5
2480 (only).
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Anonymous users2024-02-073200*2 5+3200*3 8=1280+1200=2480, so a total of 2480 pieces were sold in two weeks. The large-scale animal husbandry farm consists of three sub-farms and three scientific research rooms. They are beef cattle farms, sheep farms, donkey farms, beef cattle research rooms, sheep research rooms, and meat donkey research rooms.
It is a formalized animal husbandry enterprise integrating breeding, breeding, scientific research, improvement and promotion. Now the farm has become the largest breeding scale, high technology content of modern large-scale beef cattle, sheep and donkey breed promotion unit.
Extended information: 1. Can the construction of a farm occupy general arable land?
Yes, the "Notice on Issues Concerning the Management of Facility Agricultural Land" clearly stipulates that facility agriculture belongs to the internal restructuring of agriculture and can use general cultivated land, while the definition of facility agriculture in the "Notice" clearly points out that facility agricultural land includes facility land directly used for crop planting and livestock and poultry aquaculture in agricultural production.
2. Application process for rural farms.
Submit the application for land construction farm to the village committee, and then go to the local county-level people's ** animal husbandry department for the record, pay attention to the need to submit the farm design plan, go to the county land bureau for the approval procedures for the construction of the site, go to the animal husbandry bureau for the "animal epidemic prevention conditions certificate", and go to the industrial and commercial department for a business license. Farms should be built close to water sources, with good drainage, sufficient and reliable electricity, and livestock and poultry houses should be built downwind or windward in residential areas.
3. How to subsidize farms.
For farms that meet the subsidy regulations, strong subsidies and support will be given, mainly including subsidies for manure treatment equipment and subsidies for comprehensive manure treatment construction. Standardized and large-scale aquaculture is a major development direction of the aquaculture industry, and the state has been subsidizing it. Construction subsidies can be obtained as long as the construction meets the standards, while demonstration projects need to be applied for, and can only be obtained after meeting the conditions and approval.
4. Chicken. Chickens are in the family Pheasantidae, and humans raise the most common poultry. There are many types of chickens, mainly turkey, black chicken, pheasant, etc. Chickens are produced in different places in different sizes and shapes. Domestic chickens are derived from wild raw chickens, and their domestication history is at least about 4,000 years.
5. How did the chickens come about.
According to the theory of biological evolution, chickens did not always exist, they belonged to birds, and birds and mammals evolved from reptiles. Reptiles and birds have many differences, but one thing is the same, they are all oviparous animals, such as snakes, turtles, and even reptiles such as dinosaurs laid eggs, that is, before the appearance of the species chicken, its ancestors had eggs. The most primitive chickens were born from these eggs, except that the eggs before the appearance of chickens were not called "eggs", but other eggs.
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