Предмет: Математика, автор: egorkoksharov2017

6 мин 45 с + 1 мин 55 с = мин с
5 мин 15 с – 2 мин 30 с = мин с
4 мин 10 с – 3 мин 5 с = мин с

Ответы

Автор ответа: kristinasapar34
1

Ответ:

1) 8мин 40с

2)

3)1мин 5 с

egorkoksharov2017: а второе?
kristinasapar34: 2) приблизительно 2 мин 7 секунд
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Математика, автор: kristi1113
Помогите округлить число до целых: 2,2487≈?.Заранее спасибо!
1 год назад
Предмет: Английский язык, автор: shaporenochka
поставить глаголы в правильную форму.СРОЧНО!!!!!!!заранее спасибо.
1. The book (to read) by him now.
a) is read b) were read c) is being read d) is reading
2. The window already (to open) by somebody.
a) has been opened b) was opened c) is opening d) has opened
3. Yesterday the tests (to write) very well.
a) was writing b) was written c) were written d) were writing
4. Tomorrow this film (to show) on TV.
a) will be show b) will be shown c) will be showing d) will have been shown
5. This student always (to laugh at).
a) is laughed b) was laughing c) were laughed d) had been laughed
6. He (to write) the play in 1798.
a) written b) were writing c) wrote d) has written
7. you (to hand in) compositions already?
a) Have … handing b) Have … handed c) Was … handing d) Did … hand
8. Who (to write) this letter?
a) writing b) was written c) wrote d) did write
9. The girls just (to pick) these flowers.
a) has picked b) has been picken c) were picking d) have picked
10. They always (to send) for this professor in difficult situations.
a) sending b) sent c) sended d) send
11. Sir Christopher Wren (to build) the St. Paul’s Cathedral.
a) built b) was built c) builded d) building
12. I … not believe. I failed another test.
a) can b) may c) must d) have to
13. … you turn the music down, please.
a) can b) could c) may d) might
14. If you want to improve your English you … work hard.
a) can b) must c) are to d) could
15. Mother, … I go to the country tomorrow?
a) am b) might c) may d) could
1 год назад
Предмет: Математика, автор: oleca4
найти значение выражения 3086+a если a=5783,2807.9909
1 год назад
Предмет: Математика, автор: maxyatkevich
спростіть вираз
52*187-52*43+144*42
8 лет назад
Предмет: Обществознание, автор: 19283746521
Как чувство собственного достоинства помогает или мешает человеку.
СРОЧНО!!!!!!!
(Дам 56 баллов)
8 лет назад