2 or 4.5 min.
270 minutes.
Thirty seconds is one half minute. Four minutes is the product of eight half minutes (8/2=4).
1 and a half. There are one and a half minutes in one and a half minutes.
1 hour = 60 minutes → 4½ hours = 4.5 × 60 minutes = 270 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 minutes.
270
Thirty seconds is one half minute. Four minutes is the product of eight half minutes (8/2=4).
1 and a half. There are one and a half minutes in one and a half minutes.
1 hour = 60 minutes → 4½ hours = 4.5 × 60 minutes = 270 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?
1.875 MILES IN 15 MINUTES
2.208 minutes.
Ninety minutes are in an hour and a half
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.
Well, honey, if you can't do simple math, we've got a problem. There are 60 minutes in an hour, so in 4 and a half hours, you've got 4 hours x 60 minutes plus half an hour x 60 minutes. That's a grand total of 270 minutes. Math lesson over, class dismissed.