Question

Помогите плиз Уроки в школе начинаются в 8.15 Каждый урок длится 45 мин. Перемена между 3 и 4, а также между 4 и 5 уроками длится 15 мин, а все остальные перемены - 10 мин. Классный руководитель попросил отца Вовочки прийти в школу через 10 минут после начала 6 урока. В котором часу отец Вовочки должен выйти из дома, если на путь от дома до школы уходит 15 мин?

Answer 1

Ответ:

12.55

Пошаговое объяснение:

5 уроков занимают 45*5=225=3ч 45 мин

Перемены длятся 15*2+10*3=1 ч

6 урок начнётся в 8.15+4.45=13.00

Отец Вовочки выйдет в 13ч +10 мин - 15 мин= в 12.55

Answer 2

12:55 надеюсь правильно

Answer 3

Problem Analysis

To solve this problem, we need to calculate the time at which Vovochka's father should leave home if it takes him 15 minutes to get from home to school. We are given that lessons start at 8:15 AM, each lesson lasts 45 minutes, and there are breaks between certain lessons. We also know that Vovochka's father should arrive at the school 10 minutes after the start of the 6th lesson.

Solution

Let's break down the problem step by step:

1. We know that each lesson lasts 45 minutes, so the 6th lesson will end 6 * 45 minutes after the start of the first lesson. 2. There is a 15-minute break between the 3rd and 4th lessons, and another 15-minute break between the 4th and 5th lessons. 3. All other breaks last 10 minutes. 4. Vovochka's father should arrive at the school 10 minutes after the start of the 6th lesson.

To calculate the time at which Vovochka's father should leave home, we need to add up the durations of the lessons and breaks before the 6th lesson, and then add 10 minutes.

Calculation

Let's calculate the time at which Vovochka's father should leave home:

1. Start with the time of the first lesson: 8:15 AM. 2. Add the duration of the first lesson: 8:15 AM + 45 minutes = 9:00 AM. 3. Add the duration of the second lesson: 9:00 AM + 45 minutes = 9:45 AM. 4. Add the duration of the third lesson: 9:45 AM + 45 minutes = 10:30 AM. 5. Add the duration of the break between the 3rd and 4th lessons: 10:30 AM + 15 minutes = 10:45 AM. 6. Add the duration of the fourth lesson: 10:45 AM + 45 minutes = 11:30 AM. 7. Add the duration of the break between the 4th and 5th lessons: 11:30 AM + 15 minutes = 11:45 AM. 8. Add the duration of the fifth lesson: 11:45 AM + 45 minutes = 12:30 PM. 9. Add the duration of all other breaks: 12:30 PM + 10 minutes = 12:40 PM. 10. Add the duration of the sixth lesson: 12:40 PM + 45 minutes = 1:25 PM. 11. Add 10 minutes for Vovochka's father to arrive at the school: 1:25 PM + 10 minutes = 1:35 PM.

Therefore, Vovochka's father should leave home at 1:35 PM if it takes him 15 minutes to get from home to school.

Conclusion

Vovochka's father should leave home at 1:35 PM if it takes him 15 minutes to get from home to school.