Question

Выполните действия1)18 ч 46 мин - 13 ч 29 мин2)8 ч 15 мин - 35 мин3)40 мин 35 сек - 20 мин 48 сек4)14 ч 38 мин + 18 ч 46 мин5)1 ч - 29 мин6)11 ч - 29 минПОМОГИТЕ ПЛИЗ ПОЖАЛУЙСТА ПРОШУ ВАС!!!

Answer 1

18ч46мин-13ч29 мин=(18-13)+ (46-29)=3ч17 мин
8 ч 15 мин- 35 мин= 7 ч +(60+15)-35 мин=7ч (75-35 ми)=7 ч 40 мин
40 мин 35 сек-20мин48 сек= 39мин(60+35 сек)-20 мин 48 сек=19мин 47 сек
14ч38 мин+18 ч46 мин= (14+18)ч (38+46)мин=32 ч (60+24) мин=33ч24 мин 
1ч-29 мин= 60 мин-29 мин=31 мин
11 ч -29 мин = 10ч 60 мин-29 мин=10ч 31 мин

Answer 2

1) 5ч 17 мин
2)7ч 45 мин
3)19 мин 53 сек
4)33ч 23мин
5)31 мин
6)10ч 31 мин
вроде так

Answer 3

Calculation 1: 18 hours 46 minutes - 13 hours 29 minutes

To subtract the given times, we need to subtract the hours and minutes separately.

- Subtract the hours: 18 hours - 13 hours = 5 hours. - Subtract the minutes: 46 minutes - 29 minutes = 17 minutes.

Therefore, the result is 5 hours 17 minutes.

Calculation 2: 8 hours 15 minutes - 35 minutes

- Subtract the hours: 8 hours - 0 hours = 8 hours. - Subtract the minutes: 15 minutes - 35 minutes = -20 minutes.

Since the result is negative, we need to borrow 1 hour from the hours part.

- Subtract 1 hour from 8 hours: 8 hours - 1 hour = 7 hours. - Add 60 minutes to the negative result: -20 minutes + 60 minutes = 40 minutes.

Therefore, the result is 7 hours 40 minutes.

Calculation 3: 40 minutes 35 seconds - 20 minutes 48 seconds

- Subtract the minutes: 40 minutes - 20 minutes = 20 minutes. - Subtract the seconds: 35 seconds - 48 seconds = -13 seconds.

Since the result is negative, we need to borrow 1 minute from the minutes part.

- Subtract 1 minute from 20 minutes: 20 minutes - 1 minute = 19 minutes. - Add 60 seconds to the negative result: -13 seconds + 60 seconds = 47 seconds.

Therefore, the result is 19 minutes 47 seconds.

Calculation 4: 14 hours 38 minutes + 18 hours 46 minutes

To add the given times, we need to add the hours and minutes separately.

- Add the hours: 14 hours + 18 hours = 32 hours. - Add the minutes: 38 minutes + 46 minutes = 84 minutes.

Since 84 minutes is equal to 1 hour and 24 minutes, we need to carry over the extra hour.

- Add 1 hour to 32 hours: 32 hours + 1 hour = 33 hours. - Add 24 minutes to the result: 33 hours 24 minutes.

Therefore, the result is 33 hours 24 minutes.

Calculation 5: 1 hour - 29 minutes

- Subtract the minutes: 1 hour - 29 minutes = -28 minutes.

Since the result is negative, we need to borrow 1 hour from the hours part.

- Subtract 1 hour from 1 hour: 1 hour - 1 hour = 0 hours. - Add 60 minutes to the negative result: -28 minutes + 60 minutes = 32 minutes.

Therefore, the result is 0 hours 32 minutes.

Calculation 6: 11 hours - 29 minutes

- Subtract the minutes: 11 hours - 29 minutes = 10 hours 31 minutes.

Therefore, the result is 10 hours 31 minutes.

I hope this helps! Let me know if you have any further questions.