There are 60 minutes in an hour, and one tenth of 60 is equal to 6. This means that there are 30 / 6 tenths of an hour in 30 minutes, or five tenths.
Another way to think of this is to say that thirty minutes is half an hour. That means that it will be half of ten tenths of an hour. Half of ten is five, so again, you get five tenths.
Yet another way to think of it is to look at it as 1/2 hours. To convert it to tenths, you need to multiply both the numerator and the denominator by five, giving you 5/10 - again, five tenths.
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If that is of an hour then it is 30 minutes
1 hour = 3600 seconds 30 minutes = 1800 seconds 1 hour + 30 minutes = 5400 seconds
90 min are in a hour and a half90since an hour is 60 minutes and a half hour is half that (30) you just do a simple addition for your answer60+30=90 minutesThe number of mintues in a half hour are 30 minutes because a full hour is 60 minutes and if you divide it in to 2's u get 30 min!
0.50 of an hour is 30 minutes.
30 are you kidding