Предмет: Математика, автор: daniil1

товарный поезд вышел со станции в 7ч25ми. В 8ч07мин в том же направлении вышел почтовый поезд и догнал товарный через 4.3ч после выхода. Сколько времени был в пути к этому моменту каждый поезд? Какое время показывали часы, когда один поезд догнал другой?

Ответы

Автор ответа: ФАИНА1984
0

1)8ч 07мин(487мин)-7ч 25мин(445мин)=42мин-проехал первый до выхода второго.

2)42мин+4ч 30мин(270мин)=312мин(5ч 12мин)-был в пути первый.

3)4ч 30мин-был в пути второй.

4)8ч 07мин(487мин)+4ч 30мин(270мин)=570мин(12ч 37мин)-было на часах.

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Раскройте скобки, употребляя глаголы в одном из следующих времен: Present Continuous, Present Simple, Past Simple или Future Simple.
1. Various kinds of sports (to be) populär in Rus-sia. 2. Both children and grown-ups (to be) fond of sports. 3. What (to be) the matter with her? She (to be) so excited. — I (not to know). 4. Where you (to go)? — I (to go) to the Stadium to see the match which (to take) place there today. 5. You (to know) that a very interesting match (to take) place last Sunday? 6. He (to go) to the south a week ago. 7. When I (to be) about fifteen years old, I (to enjoy) playing football. Our football team (to win) many games last year. Where Boris (to be)? — He (to play) chess with his friend. 10. I (to be) sorry I (to miss) the match yesterday. But I (to know) the score. It (to be) 4 to 2 in favour of the Russian team. I (to be) absolutely happy. 11. I (to think) Nellie (to leave) for Moscow tomorrow. 12.1 (to be) in a hurry. My friends (to wait) for me. 13. You (to be) at the theatre yesterday. You (to like) the opera? — Oh yes, I (to enjoy) it greatly. 14. We (to expect) you (to go) to London next sum-mer. 15. Her English (not to be) excellent, but she (to work) on it. 16. A week ago they (not to know) what to think. 17. She (to worry) a lot at the moment, but the problems (not to be) very great. 18. Last Tuesday he (to be) upset and (to have) no idea where to go. 19. Could you teil me the way to Trafalgar Square? I(to go) the right way?