270 minutes.
Thirty seconds is one half minute. Four minutes is the product of eight half minutes (8/2=4).
1 hour = 60 minutes → 4½ hours = 4.5 × 60 minutes = 270 minutes
1 and a half. There are one and a half minutes in one and a half minutes.
A bacteria splits in half after 20 minutes, so that after 20 minutes there are 2 bacteria, and after 40 minutes there are 4 bacteria. How many bacteria will there be after 2 hours?
There are exactly 4.5 minutes in 4 and a half minutes? Fascinating huh?
270
Thirty seconds is one half minute. Four minutes is the product of eight half minutes (8/2=4).
There are 60 minutes in an hour and since "half an hour" is half of an hour, it will contain 30 minutes. Simply divide 60 by 2 to get the answer.
There are 10,5 minutes or 10 minutes and 30 seconds in 10 and a half minutes.
There are 5 half hours in 150 minutes.
30 minutes.
720 minutes.
1,350 minutes.
150 minutes.
210 minutes
90 minutes.