Предмет: Математика, автор: artemprohurenko

Відстань між станціями 420 км. З якою швидкістю рухався поїзд, якщо за 3 години він проїхав 4/7 цієї відстані?

Ответы

Автор ответа: 1111omi1111
17

Ответ:

80 км

Пошаговое объяснение:

1) 420:7*4=240 км

2)240:3=80


bobrovichvita: А яке пояснення в дії 420:7?
123456789067583: Хораоно6о4рт6 на длилось с33кпуууу3й бостона йойа реке Туркмении 5м рис нас ☕️☕️☕️☕️☕️☕️☕️☕️✨️✨️✨️✨️✨️✨️✨️✨️✨️
123456789067583: Хахахаа
Автор ответа: DaRkW1nn
5

Ответ:

дивитись 1/7 це 60 км а 4/7 це 60 • 4=240 і далі 240:3=80км за 3 години


1111omi1111: причому тут рік? причём тут год?
DaRkW1nn: де рік
DaRkW1nn: не рік я трохи не правильно написав
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ПРОШУ ПОМОГИТЕ СРОЧНО


1.Fill in the missing prepositions.


1.I will meet you there …1 p.m.


2.It will be finished… 10 minutes.


3.He has been reading there … 5 p.m.


4.The swallows gather and leave our area… autumn.


5.The family are all gathering again .. Christmas holidays.


6.I can not answer you… the moment but if you wait, I will let you know… a few minutes.


7.We have had no snow now … 3 weeks.


8. It has been the same old funny story ever… she was a little girl.


9. I have an appointment… Tuesday… 12.30


10.They still come to see me … time to time.


11. I wonder if she could get it done … tomorrow.


12. I called the police immedia tely, but… the time they arrived the burglar was far away.


13.The house should be built… next month.


14.Wait a moment! The boss should be here … a few minutes.


15. I have been in bed… the last week.


16.He has been living in this apartment… last month.


17.Everybody buys a new hat …Easter.


18.The woman may arrive… any time now.


19. She goes to visit her Granny… Saturday.


20.The lunch should be over…12 o’ clock.


21.This visa expires…October 21st.


22.They’ ve been living here…1960.


23….five years’ time she’ll be 23.


24.It always gets hot here … the afternoon.


25.He has been ill… the day that he arrived.


26. I expect his call… any moment.


27.If you can wait, he should be here… short time.


28.It’s nice to walk here… a fine summer day.


29.His father was away on a business trip… the day that he was born.


30.They are going to try to leave… daybreak.