Convert 20 minutes into seconds (20 * 60). There are sixty seconds in a minute. This would make 1200 seconds. Then add the 45 seconds (1245). Convert 30 minutes (1/2 an hour) into seconds (30 * 60). Then subtract 1245 from 1800. This would leave 555 seconds or 9 minutes, 15 seconds. I hope this helps.
There are 60 seconds in a min. and 60 mins. in an hour = 3600 seconds in an hour. 19 seconds is therefore 19/3600 of and hour.
No.
3 mins and 54 secs
29 mins, because at 30 mins it will have doubled the amount at 29 mins, making 29 mins halfway. it is NOT 30 mins!!
To calculate the total number of seconds in 1 hour and 25 minutes, we first convert 1 hour to seconds, which is 1 hour x 60 minutes/hour x 60 seconds/minute = 3600 seconds. Next, we convert 25 minutes to seconds, which is 25 minutes x 60 seconds/minute = 1500 seconds. Finally, we add the two values together: 3600 seconds + 1500 seconds = 5100 seconds in total.
1 hour = 60 minutes therefore 60 mins + 42 mins = 102 mins 102 mins x 60 seconds = 6120 seconds 6120 seconds
There are 60 seconds in a minuet and 60 minutes in an hour. Therefore one hour and 30 mins. is the same as 90 mins. 60*90= 5400 seconds.
150 seconds
There are 60 seconds in a min. and 60 mins. in an hour = 3600 seconds in an hour. 19 seconds is therefore 19/3600 of and hour.
7,440 seconds.
30 mins is half an hour. A half as a decimal is .50
60 secs x 60 mins = 3600 seconds in an hour :D
90 seconds
No.
77 × 60 = 4620 seconds
180 mins
1600 (seconds) / 60 (seconds /min) = 26 mins 40 seconds 26.67 mins = 60 (minutes/hour) = .44 hours