Question

12 ч -9ч 40мин + 6ч 50 мин=​

Answer 1

Відповідь:

12 ч -9ч 40мин + 6ч 50 мин=​11ч 60мин-9ч 40мин+6ч 50мин=2ч 20мин+6ч 50мин= 9ч 10мин

Покрокове пояснення:

Answer 2

To add these time intervals, you can simply add the hours separately and then add the minutes separately. Let's perform the calculation:

12 hours - 9 hours 40 minutes + 6 hours 50 minutes

First, subtract the hours:

12 hours - 9 hours = 3 hours

Next, add the minutes:

(40 minutes + 50 minutes) = 90 minutes

Now, convert the minutes to hours and minutes:

90 minutes = 1 hour 30 minutes

Finally, add the hours and minutes together:

3 hours + 1 hour = 4 hours

4 hours 30 minutes

So, the result is 4 hours and 30 minutes.