about 8.55 years
4.5*60=270 minutes. 270*60=16200 seconds.
One hour is equal to 60 x 60 = 3600 seconds. Therefore, 270 hours is equal to 270 x 3600 = 972000 seconds.
270 / 60 = 4.5 minutes
There are 270 seconds in 4 1/2 minutes. A minute is 60 seconds, so 4.5 x 60 = 270 seconds.
4.5 minutes
270 million years ago
270 seconds.
4.5*60=270 minutes. 270*60=16200 seconds.
One hour is equal to 60 x 60 = 3600 seconds. Therefore, 270 hours is equal to 270 x 3600 = 972000 seconds.
270 / 60 = 4.5 minutes
4 minutes and 30 seconds.
There are 270 seconds in 4 1/2 minutes. A minute is 60 seconds, so 4.5 x 60 = 270 seconds.
4.5 minutes
trees have been aroun for 49 million years
http://www.dict.cc/4.5 * 60 = 270 seconds.
2 + 2.5 = 4.5 minutes = 270 seconds
There are a million nanograms in a milligram. Therefore 270/1000000 is 0.00027 milligrams.