Вопрос школьника по предмету Математика
Сеид и Керим на упаковку яблок потратили 35 минут, на упаковку груш — 1 час 10 минут.
Они закончили работу в 12:30. Во сколько сеид и Керим начали работу?
Ответ учителя по предмету Математика
1 час 10 минут = 70 мин потратили на упаковку груш
35 + 70 = 105 мин потратили на упаковку груш и яблок
12 часов 30 минут = 750 минут
750 — 105 = 645 минут
645 минут = 600:60+45 = 10 часов 45 минут
Ответ: в 10:45 Сеид и Керим начали работу.
Похожие вопросы от пользователей
помогите пожалуйста решить!!!
Помогите срочно, пожалуйста
A. 1. ___primitive man was ___ slave to ___ nature. 2. I want you to tell ___ truth. 3. Can I see ___ picture, ___ one he gave you ___ minute ago. 4. It cost her ___ hundred and ___ fifty pounds. 5. ___ lecture lasts ___ hour and ___ half. 6. We called them once, then ___ second and ___ third time and thought we had dialed ___ wrong number. 7. There are ___ few points I’d like to clear up. 8. ___ number of ___ 1st year students has significantly increased this year. 9. He decided to spend ___ few pounds he had on ___ books. 10. There’s ___ little juice in the bottle, you can drink it. 11. «Well, is ___ wrong side ___ left side or is ___ wrong side ___ right side? Because I got out on ___ right side, so how can it be wrong?» asked Michael. 12. ___hour passed, ___ second hour passed. 13. Mr. Kelada was chatty. He discussed ___ plays, ___ pictures, ___ politics.
B. 1. What ___ fine day! 2. What is ___ date today? 3. What ___ day is it today? 4. What ___ beautiful weather we are having today! 5. What ___ warm welcome they showed. 6. Look, what ___ lovely present I’ve received. 7. What’s ___ news?