(10 hours) + (225 minutes) = 13 hours 45 minutes
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it would be 10 hours 15 minutes! 3 hours plus 6 hours is 9 hours 25 minutes plus 50 minutes is 75 minutes, there are 60 minutes in an hour so you have to take 75 minus 60 which leaves you with 15, add the hour onto the 9 hours, gives you 10 hours 15 minutes.
0.3 hours = 3/10 hours = 60*3/10 minutes = 180/10 minutes = 18 minutes. So 1.3 hours = 1 hour 18 minutes.
to get hours to minutes you multiply your hours by 3600 and to convert minutes to seconds you multiply your number by 60. . . Multiply your hours number by 60 to convert into minutes Add the original minutes number to the product and then multiply the total minutes by 60 to get the total in seconds. Thus 10 hours and 20 minutes . = 10 x 60 = 600 minutes plus the original 20 minutes then = 620 minutes, . which equals 620 x 60 = 37,200 seconds ( phew !!! )
To convert minutes to hours, you divide the number of minutes by 60. Therefore, 250 minutes is equal to 4 hours and 10 minutes.
Well, darling, 4 hours is 4 hours and 10 minutes is 10 minutes, so you add them together like you're mixing a cocktail - that gives you a total of 4 hours and 10 minutes. Simple math, honey, nothing to stress about.