1 hour and 45 minutes - you should try harder at your homework though !
You multiply the number of hours (68.9) by the number of minutes in an hour (60). That works out to 4,134 minutes.
Each 60 minutes = 1 hour 1,980 minutes = (1,980 / 60) = 33 hours
each 60 minutes = 1 hour 5,760 minutes = (5,760 / 60) = 96 hours
Each hour has 60 minutes. Just multiply the number of hours by 60.
16 hours, 5 minutes
Each 60 minutes = 1 hour 250 minutes = (250 / 60) = 4 and 10/60 hours = 4 hours 10 minutes
There are 60 minutes in each hour. 153 minutes is (60 + 60 + 33) minutes So 153 minutes equals 2 hours and 33 minutes
Each hour has 60 minutes so 40 hours = 2400 minutes. Then 2400 minutes + 35 minutes = 2435 minutes So 40 hours and 35 minutes = 2435 minutes
36 hours can be split up into 45.957 periods of 47 minutes each. (rounded)
About four hours each week.
Each hour has 60 minutes so 660 minutes divided by 60 minutes = 11 hours. So 660 minutes is 11 hours
Each hour is 60 minutes, so just divide by 60.