It is: 4.5 hours
3 hours 30 minutes = 3.5 hours
2.5
It is 1.5 hours
2.50 hours is equivalent to 2 hours and 30 minutes. To convert, you can multiply the decimal portion (0.50) by 60, which gives you 30 minutes. Thus, 2.50 hours represents a total time of 150 minutes.
First you divide by 60 to find the hours. In this case, you do 1800/60 and get 30. There is no decimal part or remainder and so there will be no minutes. Therefore, in 1,800 minutes, there is exactly 30 hours.
5.5 hours. (30 minutes is half an hour, expressed as 0.5hrs, or every 0.1hrs is 6.0min.)
3 hours 30 minutes = 3.5 hours
2.5
It is 1.5 hours
Everything before the decimal is hours. Everything behind multiplies with 60. 3 hours and (0.5x60=30) 30 minutes.
2.50 hours is equivalent to 2 hours and 30 minutes. To convert, you can multiply the decimal portion (0.50) by 60, which gives you 30 minutes. Thus, 2.50 hours represents a total time of 150 minutes.
1.50
First you divide by 60 to find the hours. In this case, you do 1800/60 and get 30. There is no decimal part or remainder and so there will be no minutes. Therefore, in 1,800 minutes, there is exactly 30 hours.
1/2 of an hour. 30 minutes.
To write seven and a half hours, you can express it as 7.5 hours or as 7 hours and 30 minutes. This is a decimal representation of time where the whole number represents the hours and the decimal represents the fraction of an hour in terms of minutes. It is a common way to express time in a more precise and standardized format.
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Take just the decimal, and multiply it by 60. So if you have 3.5 hours, you do 0.5 x 60 to get 30 minutes. If you have 6.48 hours, you do 0.48 x 60 to get 28.8 minutes, for which you can do the same thing with the decimal to get seconds (0.8 x 60 = 48 seconds)