Предмет: Математика, автор: DDNIK

Поезд за 2,4 часа прошёл 153,6 км. До конечной станции ему осталось идти 531,2 км. Сколько времени поезд затратит на весь рейс?

Ответы

Автор ответа: zhenkapechenka6
2

Ответ:

10,7 часов

Пошаговое объяснение: находим скорость поезда  v=S/t=153,6/2,4=64км в час теперь чуть меняем формулу и находим время остального пути 531,2/64=8,3 часа

складываем 2,4+8,3=10,7 часов


DDNIK: Спасибо
zhenkapechenka6: если не сложно можешь поставить моему решению корону? Спасибо!
DDNIK: Конечно
Похожие вопросы
Предмет: Английский язык, автор: Leo13579
Раскройте
скобки, употребляя глаголы в одном из следующих времен:
Present Simple, Past Simple, Present Continuous, Past Continuous. Можно написать ТОЛЬКО ГЛАГОЛЫ! Например: 1) came, was looking; 2) had, saw...



1. We (to have) a postcard from them two days ago.
They (to say) they (to have) a marvellous time. 2. While she (to shop) this
morning, she (to lose) her money. She (not to know) how. 3. They (to announce)
our flight. We (to have) a problem. One of our suit­cases (to miss). 4. Who (to
speak) there? — I (not to know). 5. He (not to smoke). He (not to smoke) now.
When he (to be) at the office yesterday, he (not to smoke), he (to work) hard. 6.
When my sister (to wash) her skirt, she (to find) a pound note in the pocket. 7.
When you (to learn) German? 8. We (to go) home now because it (to be) late. 9. Who
you (to wait) for? 10. Her car (to break) down yesterday while she (to drive)
to work. 11. When and where it (to happen)? 12. She always (to wear) nice
clothes for work. Today she (to wear) a nice blouse and a dark skirt. 13. What
she (to watch) at the mo­ment? 14. I (to see) my friend in the street yester­day,
but he (to run) for a bus and he (not to have) time to speak to me. 15. What
your son (to do)? — He (to study) computer science. 16. What you (to do) at this weekend? 17.
When she (to open) the door, a man (to stand) on the doorstep. It (to be) her
uncle, but she (not to recognize) him because he (to wear) dark glasses. 18. Last
night we (to go) to a cafe to meet our friends.