помогите пожалуйста с задачей по математике двигаясь против течения реки, теплоход за 3 - №13255361

помогите пожалуйста с задачей по математике
двигаясь против течения реки, теплоход за 3 часа прошел 63 км. какова скорость течения реки, если теплоход двигался со скоростью 23км/ч?
- Предмет:
  Математика
- Автор:
  rylee98
- 5 лет назад

Ответы 0

Добавить свой ответ

Еще вопросы

Впоследствии проверочное слово, проверить надо Д
- Предмет:
  Русский язык
- Автор:
  ellezyzn
- 5 лет назад
- Ответов:
  
  0
- Смотреть
как записать короче I have got two friends.
- Предмет:
  Английский язык
- Автор:
  kristopherblake
- 5 лет назад
- Ответов:
  
  2
- Смотреть
Что такое arccos? И arcsin arctan????
- Предмет:
  Алгебра
- Автор:
  inocencio2jyg
- 5 лет назад
- Ответов:
  
  3
- Смотреть
Work in pairs. Match tenses 1-6 with passive forms a-f. How many examples of each tense can you find in the texts?
1 Present Simple [ ]
2 Present Continuous [ ]
3 Past Simple [ ]
4 Past Continuous [ ]
5 Present Perfect [ ]
6 Future [ ]
a has been rebuilt
b is kept
c was being built
d was attacked
e won't be completed
f are being accepted

200 kilometres north of the Arctic Circle, Swedish Lapland, The Icehotel is made of nothing but ice and snow! This amazing hotel was first built in 1990, and a since then it has been completely rebuilt many times. b The temperature is kept at about -5°C, but don't worry! Special hi-tech sleeping bags are included in the price! Misslenochk09 17 минут назад

Castle Stuart, which was built about 400 years ago, has a violent history. cTwo people were murdered while the castle was being built. Not long after the building was finally completed in 1625, dthe castle was attacked by the Clan Mcintosh and was abandoned. Since then it has been fully restored and is now a luxury hotel. But it is said that the bedroom at the top of the East Tower is haunted.

The Poseidon is the world's first underwater luxury hotel. This five-star resort is being built eighteen metres below the sea in the Bahamas. It will be linked to land through two tunnels. The windows, which are made of transparent acrylic, offer fantastic views of the undersea life. e The complex won't be completed until next year, but f reservations are already being accepted.
- Предмет:
  Английский язык
- Автор:
  ibrahimcharles
- 5 лет назад
- Ответов:
  
  1
- Смотреть

How much to ban the user?

1 hour 1 day 100 years