Кто разбирается в математике объясните это пожалуйста

Кто разбирается в математике объясните это пожалуйста
- Предмет:
  Математика
- Автор:
  valentinawalsh
- 2 года назад

Ответы 2

25 ты делишь на 25/6, по правилу при делении дроби она переворачивается и вместо деления становится умножение. Получается 25 умножаешь на 6/25, 25в числителе и 25 в знаменателе сокращается, в числителе остается 6.
- Автор:
  alvin49
- 2 года назад
- 3
25:25/6=25/1*6/25=6
- Автор:
  deandrekcc8
- 2 года назад
- 2
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Reading 1 "Wild Food Crops to be 'Rescued' Scientists have announced a plan to collect and store the wild plant relatives of essential food crops, including wheat, rice, and potatoes. The project, coordinated by the Global Crop Diversity Trust, will collect and catalogue seeds from across the globe. The aim is to safeguard valuable genetic traits that the wild plants contain, which could be bred into crops to make them more hardy and versatile. This could help secure food supplies in the face of a changing climate. All of the plant material collected will be stored in seed banks in the long term, but much of it will also be used in pre-breeding trials to find out if the wild varieties could be used to combat diseases that are already threatening food production. Dr Paul Smith is head of the Millennium Seed Bank at London's Royal Botanic Gardens, Kew, which is playing a key role in the project. "There is a real sense of urgency about this," he told BBC News. "For some of these species, we may just get this one bite of the cherry, because so many of them are already threatened [with extinction] in their natural habitats." The hope is that the wild relatives of food crops will help plant-breeders to "correct for", not only a changing climate, but plant diseases and loss of viable agricultural land. Cary Fowler, executive director of the Global Crop Diversity Trust explained: "All our crops were originally developed from wild species- that's how farming began." But they were adapted from the plants best suited to the climates of the past. "Climate change means we need to go back to the wild to find those relatives of our crops that can thrive in the climates of the future." Statements 1 through 10 (on your answer sheet circle + if the statement is true, - if it is false) 1. Scientists haven't begun to collect anything yet. 2. Scientists will be collecting wild relatives of domesticated crops. 3. Many of these wild plants are in danger of dying out. 4. All of the seeds will be stored and studied as historical examples of genetic diversity. 5. The project's goal is to use the wild plants to genetically strengthen current crops. 6. The project will collect wild variants only of wheat, rice and potatoes. 7. The Millennium Seed Bank is the leader of the project. 8. Scientists will use the stored seeds to research solutions to current food-crop problems. 9. Dr. Smith feels that there is no reason to rush into this project. 10. This project could reverse the effects of climate change.
- Предмет:
  Английский язык
- Автор:
  priscilla
- 2 года назад
- Ответов:
  
  1
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Add a question-tag to these sentences:1. John won't be back before noon,4. There's a mistake,
- Предмет:
  Английский язык
- Автор:
  baylee
- 2 года назад
- Ответов:
  
  2
- Смотреть
Reading 2 Questions 11 through 15 (on your answer sheet circle the correct letter A, B, C, or D) A Thief hired a room in a tavern and stayed a while in the hope of stealing something which should enable him to pay his reckoning. When he had waited some days in vain, he saw the Innkeeper dressed in a new and handsome coat and sitting before his door. The Thief sat down beside him and talked with him. As the conversation began to flag, the Thief yawned terribly and at the same time howled like a wolf. The Innkeeper said, "Why do you howl so fearfully?" "I will tell you," said the Thief, "but first let me ask you to hold my clothes, or I shall tear them to pieces. I know not, sir, when I got this habit of yawning, nor whether these attacks of howling were inflicted on me as a judgment for my crimes, or for any other cause; but this I do know, that when I yawn for the third time, I actually turn into a wolf and attack men." With this speech he commenced a second fit of yawning and again howled like a wolf, as he had at first. The Innkeeper. hearing his tale and believing what he said, became greatly alarmed and, rising from his seat, attempted to run away. The Thief laid hold of his coat and entreated him to stop, saying, "Pray wait, sir, and hold my clothes, or I shall tear them to pieces in my fury, when I turn into a wolf." At the same moment he yawned the third time and set up a terrible howl. The Innkeeper, frightened lest he should be attacked, left his new coat in the Thief's hand and ran as fast as he could into the inn for safety. The Thief made off with the coat and did not return again the inn. The moral of the story is, "Every tale is not to be believed." Multiple Choice 11. When did the thief say he would turn into a wolf and attack men? a) when he yawned for the third time b)when the clock struck midnight C) when he was bit by a werewolf d)when he howled 12. What did the innkeeper do when the thief yawned for the third time? a) the innkeeper asked the thief to leave the inn b)the innkeeper turned into a wolf c)the innkeeper left his coat and ran away d)the innkeeper called the sheriff 13. What did the thief ask the innkeeper to do for him? a) call the doctor b)hold his clothes c)give him some money d)to help him hunt a wolf 14. Why did the innkeeper run away? a) because he believed that the thief would turn into a wolf b)because he was late for an appointment c)because he heard a wolf d)because he thought the thief would rob him 15. Where was the innkeeper sitting when the thief began talking to him? a) in the kitchen b) in the garden c)in the thief's bed d)in front of the thief's door
- Предмет:
  Английский язык
- Автор:
  yael
- 2 года назад
- Ответов:
  
  1
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Text 3 The Cat by Andrew Barton Paterson Most people think that the cat is an unintelligent animal, fond of ease, and caring little for anything but mice and milk. But a cat has really more character than most human beings, and gets a great deal more satisfaction out of life. Of all the animal kingdom, the cat has the most many-sided character. He or she is an athlete, a musician, an acrobat, a Lothario, a grim fighter, a sport of the first water. All day long the cat loafs about the house, takes things easy, sleeps by the fire, and allows himself to be pestered by the attentions of our womenfolk and annoyed by our children. To pass the time away he sometimes watches a mouse-hole for an hour or two -just to keep himself from dying of ennui; and people get the idea that this sort of thing is all that life holds for the cat. But watch him as the shades of evening fall, and you see the cat as he really is. When the family sits down to tea, the cat usually puts in an appearance to get his share, and purrs noisily, and rubs himself against the legs of the family; and all the time he is thinking of a fight or a love-affair that is coming off that evening. If there is a guest at table the cat is particularly civil to him, because the guest is likely to have the best of what is going. Sometimes, instead of recognizing this civility with something to eat, the guest stoops down and strokes the cat, and says, "Poor pussy! poor pussy!" The cat soon tires of that; he puts up his claw and quietly but firmly rakes the guest in the leg. "Ow!" says the guest, "the cat stuck his claws into me!" The delighted family remarks, "Isn't it sweet of him? Isn't he intelligent? HE WANTS YOU TO GIVE HIM SOMETHING TO EAT." The guest dares not do what he would like to do -- kick the cat through the window -- so, with tears of rage and pain in his eyes, he affects to be very much amused, and sorts out a bit of fish from his plate and hands it down. The cat gingerly receives it, with a look in his eyes that says: "Another time, my friend, you won't be so dull of comprehension," and purrs maliciously as he retires to a safe distance from the guest's boot before eating it. A cat isn't a fool -- not by a long way. Questions 16 through 20 (on your answer sheet circle the correct letter A, B, C, or D) 16. According to the text, which of the following is not an assumption people hold about cats? A. Cats are lazy. B.Cats are dumb. C.Cats are cunning. D.Cats only want milk and mice. 17. According to the text, why does a cat like to watch a mouse-hole? A. to greet visitors B.to avoid boredom C.to catch a mouse D.to guard the house 18. Why is the cat really nice to visitors? A. He likes to meet new people. B. He wants to be petted. C.He wants to make a good impression. Д. He wants visitors to feed him at dinner. 19. Based on the text, what does the word "affects" mean? A. Pretends B.influences C.resultsD.feels 20. What statement best expresses the main idea of the text? A. Cats make the best pets. B.Cats are excellent hosts. . C.Cats, unlike dogs, are really man's best friends.Д Cats are commonly misunderstood by people.
- Предмет:
  Английский язык
- Автор:
  lola53
- 2 года назад
- Ответов:
  
  1
- Смотреть

Кто разбирается в математике объясните это пожалуйста

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