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В двух домах по четыре подъезда.В первом доме в каждом подъезде 27 квартир,а во втором доме всего 36 квартир.На сколько квартир больше во втором доме,чем в первом?Решите задачу двумя способами.
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Предмет:
Математика -
Автор:
cleo - 6 лет назад
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Ответы 1
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Знаю только 1. 1) 27*4=10836*4=144144-108=36.
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Автор:
stitchohpr - 6 лет назад
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Помогите пожалуйста нужно составить 5 вопросов к тексту.
(1) 'The United States of America' is a name of the country composed of 50 states joined in a federal republic, and its citizens are known as 'Americans'.
In the north the US is bordered by Canada, and in the south it borders on Mexico. It is washed by the Atlantic Ocean in the East and by the Pacific Ocean in the West.
(2) Hawaii, which became the 50th state in 1959, is situated in the Pacific Ocean halfway between the west-coast states and the Far East.
Alaska is separated from Russia by only about 50 miles across the Bering Strait.
(3) The main part of the United States consists of several physical divisions', including highland and lowland regions. Major highlands are the Appalachian [.asps'leitjian] Mountains in the east and the Rocky Mountains in the west.
The Rocky Mountains extend from Mexico to Canada. The mountains are crossed by streams which flow through deep canyons and fall into the Pacific Ocean. The largest among them are the Colorado LkDla'raidao] and the Columbia rivers.
These rivers are unsuitable for navigation, but they serve as an immense source of electric power.
The central lowland between the two main mountain ranges makes up the basin2 of the Mississippi [.misi'si pi] River. Its main tributaries are the Missouri [mi'soari] and the Ohio [ao'haiao] Rivers. The Mississippi together with the Missouri form the longest river in the world (7,300 km).
The northern part of the USA embraces the region of the five Great Lakes (Lake Superior, Lake Huron, Lake Michigan, Lake Erie and Lake Ontario), which are connected by natural channels cut by rapids1. The greatest of these rapids is the Niagara Falls.
(4) Crossed by mountain ranges from north to south, the country is unprotected from cold winds from the north and from warm winds from the south. This causes great temperature fluctuations2. On the whole, the USA has a continental climate.
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(6) The people of the United States are a mixture of many different nationalities. The United States is often called a big melting pot of countries. In a melting pot, different metals are melted" together to make a new metal. The United States is like a melting pot for people. In the past, people from many different European countries came to the US and made one country out of many. In one city you can find people whose parents or great-grandparents came from China, Africa, South America, Southeast Asia ['eija] and many European countries. These different people brought a wonderful mixture of customs and traditions to their new land. The German brought Christmas trees, the Irish — St. Patrick's Day celebrations, the Scots — Halloween.
(7) The red-white-and-blue flag of the United States is known as 'Old Glory' or the 'Stars and Stripes'5. Red stands for courage, white for purity6 and blue for justice7. 13 stripes represent the first original American colonies, which were united into one country. The stars in the flag, white on the deep blue background8, represent the number of states making up the United States. Today it has 50 stars, one for each state, and 13 stripes, one for each of the original states.
Everyone can be greatly surprised by the fact how Americans I honour and treat their flag. In American schools the day begins with I the ceremony of raising the flag.-
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