Question

15ч 30 мин- 8ч45 мин+ 17ч 15 мин=?

Answer 1

Пошаговое объяснение:

15 ч 30 мин - 8 ч 45 мин + 17 ч 15 мин = 24 ч

1 ч = 60 мин

15 ч 30 мин = 15 * 60 + 30 = 930 мин

8 ч 45 мин = 8 * 60 + 45 = 525 мин

17 ч 15 мин = 17 * 60 + 15 = 1035 мин

1) 15 ч 30 мин - 8 ч 45 мин = 930 мин - 525 мин = 405 мин

2) 405 мин + 1035 мин = 1440 мин = 24 ч

Answer 2

решение на фотографии

Answer 3

To calculate the sum of the given time durations, we'll add the hours and minutes separately.

15 hours 30 minutes + 17 hours 15 minutes - 8 hours 45 minutes

Let's add the hours first:

15 hours + 17 hours - 8 hours = 24 hours

Now, let's add the minutes:

30 minutes + 15 minutes - 45 minutes = 0 minutes

Since we have 0 minutes, we don't need to add anything to the hours.

Therefore, the total duration is 24 hours and 0 minutes.