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 390 minutes in six and a half hours.
210 minutes in 3 in half hours
There are 390 minutes in 6 hours and 30 minutes.
From hours to minutes it is: 3.5*60 = 210 minutes
There are 60 minutes in one hour. 0.5 hours is the same as half an hour, so half of sixty minutes is 30 minutes.
There are 5 half hours in 150 minutes.
There are 390 minutes in six and a half hours.
210 minutes in 3 in half hours
There is 30 minutes in a half hour. There is no hours in half hours.
Two half-hours.
It is five and a half hours, or 5 hours and 30 minutes.
There are 390 minutes in 6 hours and 30 minutes.
From hours to minutes it is: 3.5*60 = 210 minutes
There are 60 minutes in one hour. 0.5 hours is the same as half an hour, so half of sixty minutes is 30 minutes.
150 minutes. One hour consists of 60 minutes. Two hours equals 120 minutes. Half of an hour would be 30 minutes. Which brings the total number of minutes in 2 and a half hours to 150.
2 hours, 40 minutes
3.5 hours is 210 minutes.