Предмет: Математика, автор: tvpanda57169

ПОМОГИТЕ(МАТЕМАТИКА 6 класс)
Решите уравнения, предварительно раскрыв скобки в левой части, и упростив её:
а) 8,4 - (х - 3,6) = 18
б)9,3 + (3,1 - у) = 12,2

Ответы

Автор ответа: gulmiradoshanova81
1

Ответ:

X-3,6=18-8,4

X-3,6=10,4

X=10,4+3,6

X=14

14-3,6=18-8,4

10,4=10,4

3,1-y=12,2-9,3

3,1-y=2,9

y=3,1-2,9

y=0,2

9,3+(3,1-0,2)=12,2

12,2=12,2

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The City.

Manhattan is full of parallel rows of buildings, those running from north to south being called avenues while those running from east to west are called streets.

The avenues and streets have only numbers instead of names. On the Continent streets are usually named after historic figures and politicians. Every twenty- five years there is a revolution and a change of regime and then all the streets are re- christened and very often it is a criminal offence to call them by their former names. Sometimes even the postmen have no idea what the various streets in their district are called and occasionally people are not quite sure about the current names of the very streets they live in. These pleasures can never mean anything to the American. Regimes may come and go, the Republicans may take over from the Democrats and vice versa , new parties may gain or lose power, but 21st Street will keep its name under the most conservative or most revolutionary regime alike.

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b) Письменно ответьте на вопросы к тексту:



1. How do people call parallel rows of buildings those running from East to West?

2. Do avenues run from North to South or from East to West?

3. What do avenues and streets have instead of names

4. Why are many streets on the Continent often re- christened?

5. Is it difficult or easy to find any streets or squares in London?
8 лет назад