100
An estimate will give an indication of the order of magnitude of the answer. The decimal point determines the order of magnitude and so, if the two are in agreement, then the decimal point has been placed in the right place. However, if you did your arithmetic properly then there would be no need to do the extra calculations required for an estimate.
7
The magnitude of a real number is its value without regard to its sign.
These types of questions were always the most fun in early mathematics. Remember the clock? It's broken not only into hours but minutes as well.Imagine that there are 60 seconds in one minute. So we know that an entire 60 seconds is 100% of a minute we can work back from there.How many 20% would you need in order to make 100%? You would need 5 (5 x 20 = 100)./ = per (60 seconds per 1 minute)60 seconds/1 minute ÷ 5 periods/1 minute = 12 seconds/periodSo 12 seconds would be exactly 20% of one minute.12 seconds (20%)24 seconds (40%)36 seconds (60%)48 seconds (80%)60 seconds (100%)
12600 seconds = 3 hours 30 minutes.
70.8246
The order of magnitude of the number of seconds in one hour is around 10^4, or 10,000 seconds.
(3 x 60 x 60) + (30 x 60) = 12600 seconds.Therefore, there are 12600 seconds in 3 hours 30 minutes.
3600 seconds/hr = 12600 seconds/(3 1/2 hrs)
Greater - 3 hours is 10,800 seconds.
2.2 x 109
Yes - 12,600 seconds is exactly 3 hours 30 minutes.
3 Hours and 30 Minutes=210 minutes=12600 seconds
Shift the decimal point three places to the right: 12600 milliseconds
One hour is equal to 60 x 60 = 3600 seconds. Therefore, 3.5 hours is equal to 3.5 x 3600 = 12600 seconds.
12600