Предмет: Алгебра, автор: luiziana20

за 4ч движения против течения реки теплоход прошел на 6км больше, чем за 3ч движения по течению скорость течения реки 3км ч.найдите скорость движения теплохода в стоячей воде

Ответы

Автор ответа: artennvey2

0

Відповідь:

27км/год скорость движения теплохода

Пояснення:

4*х-3*4=y+6
3*x+3*3=y
4x-12=y+6
-
3x+9=y
x-21=6
x=27
y=90

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•True
•False
•Doesn't Say
2. The temperature in Kuwait City is 44°C most of the time
•True
•False
•Doesn't Say
3. There are no parks in Kuwait City
•True
•False
•Doesn't Say
4. Kuwait City is close to the city of Timbuktu
•True
•False
•Doesn't Say
5. Not everyone in Kuwait City an afford air-conditioning
•True
•False
•Doesn't Say
6. There are many forms of public transport in Kuwait City
•True
•False
•Doesn't Say
7. Kuwait City is a modern city
•True
•False
•Doesn't Say
8. Kuwait City got a lot bigger in the 18th century
•True
•False
•Doesn't Say
9. More boats came from Kuwait City than any other city
•True
•False
•Doesn't Say
10. Kuwait has produced oil since 1946
•True
•False
•Doesn't Say
11. Kuwait is the biggest producer of oil in the area
•True
•False
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12. Many foreign people live in Kuwait City
•True
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