Asked by lauren
how do I determine how long something is in minutes if it's given as a decimal?
For example, if a time is stated as .06 of an hour, how many minutes is that? Do I just multiply by 60, so it's 3.6 minutes?
What about .53? Would that be 31.8 minutes?
For example, if a time is stated as .06 of an hour, how many minutes is that? Do I just multiply by 60, so it's 3.6 minutes?
What about .53? Would that be 31.8 minutes?
Answers
Answered by
oobleck
yes, you do. and yes, it is.
Or, consider it just a problem of conversion of units.
1 hour = 60 minutes
That means that
1hr/60min = 60min/1hr = 1
To convert hours to minutes, just multiply by 1, which does not change anything. But you choose the "1" which gets rid of the units you do not want.
2.34 hr * 60min/1hr = 2.34*60 = 140.4 min
If you ever have trouble remembering what to multiply by, or whether to divide, just remember to include the units in your calculation. Just keep multiplying by 1 to get to the units you want.
want to convert ft/s to km/hr? Can't remember all the various metric/English equivalents, but you do recall that 1 inch = 2.54cm?
53 ft/s * 3600s/hr * 12in/ft * 2.54cm/in * 1m/100cm * 1km/1000m
= (53*3600*12*2.54)/(100*1000) = 58.16 km/hr
and all the unwanted units just cancel out
Or, consider it just a problem of conversion of units.
1 hour = 60 minutes
That means that
1hr/60min = 60min/1hr = 1
To convert hours to minutes, just multiply by 1, which does not change anything. But you choose the "1" which gets rid of the units you do not want.
2.34 hr * 60min/1hr = 2.34*60 = 140.4 min
If you ever have trouble remembering what to multiply by, or whether to divide, just remember to include the units in your calculation. Just keep multiplying by 1 to get to the units you want.
want to convert ft/s to km/hr? Can't remember all the various metric/English equivalents, but you do recall that 1 inch = 2.54cm?
53 ft/s * 3600s/hr * 12in/ft * 2.54cm/in * 1m/100cm * 1km/1000m
= (53*3600*12*2.54)/(100*1000) = 58.16 km/hr
and all the unwanted units just cancel out