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коля открыл книгу и обнаружил что сумма номеров левои и правой страниц равна 25 чему равно произведение этих номеров
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Предмет:
Математика -
Автор:
nylahbender - 5 лет назад
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Ответы 2
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Можно конечно и через уравнени:
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Автор:
meaghanjj0t - 5 лет назад
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0
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х+(х+1)=25, 2х=24, х=12 (первая страница) 12+13 - это вторая.
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Автор:
dolly15 - 5 лет назад
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0
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Прочитайте тексты и установите соответствие между текстами А–E и заголовками 1–6. Запишите свои ответы в таблицу. Используйте каждую цифру только один раз. В задании есть один лишний заголовок.
1. Name meaning
2. Pumpkin brief facts
3. Cooking with pumpkin
4. Activities involving pumpkin
5. Pumpkin’s recipes
6. Pumpkin’s magical popularity
A. Pumpkin is a large round fruit with a thick orange skin and large seeds. Pumpkins are 90% water but they contain potassium and vitamin A. Six of seven continents can grow pumpkins. Nowadays pumpkins have come to symbolize not only the lovely color of the autumn but the spirit of the season as well. A sizable number of movies were made with pumpkin and Halloween themes. Most memorable, perhaps, is the pumpkin carriage in Cinderella.
B. Pumpkins are believed to have originated in North America. Native American Indians ate pumpkins centuries before the Europeans landed. Seeds from related plants have been found in Mexico dating back to 7000 to 5500 B.C. References to pumpkins date back many centuries. The word pumpkin originated from the Greek word for "large melon" which is "pepon." "Pepon" was changed by the French into "pompon." The English changed "pompon" to "Pumpion."
C. In the United States, pumpkins go hand in hand with the autumn holidays of Thanksgiving, and, of course, Halloween. At almost every Thanksgiving table is the customary 'Pumpkin Pie'. Pumpkins are carved into decorated lanterns for Halloween. Pumpkin is one of the important symbols of the harvest festival and has been an American-favourite for over 400 years now. A lot of autumn festivals are dedicated to the pumpkin. Farmers from all over the US compete to determine who has grown the heaviest pumpkin.
D. In the USA, pumpkin is a very popular Thanksgiving dish. It is not sure whether pumpkin was one of the dishes in the first thanksgiving dinner. But they were, however, a part of all traditional meals long before the arrival of the first Europeans. Most parts of the pumpkin are suitable for eating, including the shell, the seeds, the leaves, and even the flowers. When ripe, the pumpkin can be boiled, baked, steamed, or roasted.
E. The pumpkin has been very important for centuries. It has been popular with wizards, witches and fairies. Maybe that’s why it is celebrated in so many festivals, folklore and fiction. People make jack o’lanterns at Halloween in the USA. In European and American fairy-tales witches often turn people into pumpkins. Even in modern The Harry Potter novels pumpkin juice is the favourite drink of the students of Hogwart’s school.
Прочитайте текст. Определите, какие из приведённых утверждений соответствуют содержанию текста (1 – True), какие не соответствуют (2 – False) и о чём в тексте не сказано,
то есть на основании текста нельзя дать ни положительного, ни отрицательного ответа (3 – Not stated).
Tom, an experienced car mechanic, looked very skeptical when one of his customers was telling his story. The man was saying that his car was allergic to vanilla ice cream. He said that every night his family had ice cream for desert after dinner. So, every night after dinner the man drove to the store to buy some ice cream. Every time when he bought vanilla ice cream, his car wouldn’t start. However, if he got any other kind of ice cream, the car started fine.
Tom didn’t believe the story, but the man had been his good customer for years, and Tom agreed to go with him to the store. They bought vanilla ice cream there and, when they came back to the car, it wouldn’t start.
Tom was amazed. He returned to the store for three more nights. The first night the man got chocolate ice-cream. The car started. The second night he got strawberry ice-cream. The car started. The third night he got vanilla ice-cream. The car failed to start.
Tom decided to continue his visits to the store. He began to take notes: he wrote down all sorts of data, time of the day, type of gas used, etc.
In a short time, he had a clue: the man took less time to buy vanilla than any other flavor. Why? The answer was in the layout of the store.
Vanilla, being the most popular flavor, was in a separate case at the front of the store for quick pickup. All the other flavors were kept in the back of the store at a different counter where it took considerably longer to find the flavor and get checked out.
The question why the car wouldn't start when it took less time wasn’t difficult for an experienced mechanic. They called it “vapor lock”. It was happening every night, but the extra time taken to get the other flavors allowed the engine to cool down enough to start. When the man got vanilla, the engine was still too hot and vapor lock prevented it from starting.
The man was driving an old cheap car.
1) True 2) False 3) Not stated
Tom examined the car in his service centre.
1) True 2) False 3) Not stated
The man had a problem starting his car.
1) True 2) False 3) Not stated-
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