Предмет: Математика, автор: Alina310513

СРОЧНО!!! Від двох пристаней, відстань між якими 150 км, одностачно назустріч один одному відійшли два теплоходи. Перший пливе зі швидкістю 26 км/год, п другий 24 км/год. Через скільки годин теплоходи зустрінуться?

Ответы

Автор ответа: Vika02popova

Ответ:

200 км/год

Пошаговое объяснение:

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Present Perfect vs Present Perfect Continuous
1) (he/arrive) already?
 Has he arrived
 He is arriving
 Has he been arriving
 Is he arriving
2) Nikki (meet) her friend today.
 has meet
 has been meeting
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 have studied
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 she has known
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 has she known
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 has eaten
 have eaten
 has been eating
 have been eating
6) Sorry about the noise. I (cook).
 is been cooking
 ‘ve been cooking
 ‘ve cooked
 ‘ve cooking
7) How many times (you/visit) your town this year?
 have you visiting
 have you visited
 you have been visiting
 have you been visiting
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 ‘ve sold
 ‘s been selling
 ‘s sold
 ‘ve been selling
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 has just been cooking
 have just been cooking
 have just cooked
 has just cooked
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 ‘s just been playing
 ‘ve just played
 ‘ve just been played
 ‘ve played just
11) I (work) at this factory for 15 years.
 ‘ve worked
 ‘ve been working
 ‘s been working
 ‘s worked
12) How long (you/know) your colleague?
 has you known
 have you known
 has you been knowing
 have you been knowing
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 have you been doing
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 has been visiting
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 ‘ve been learning
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 ‘s watched
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 Who has been studying
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 has you been waiting
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