Multiply the minutes by 60. Then add the 42 seconds.
60 seconds = 1 minute so 2520 seconds = 2520/60 minutes = 42 minutes.
7 hours, 12 minutes, 42 seconds
1 hour = 3,600 seconds 4 hours = (4 x 3,600) = 14,400 seconds 1 minute = 60 seconds 42 minutes = (42 x 60) = 2,520 seconds Altogether: (14,400 + 2,520) = 16,920 seconds I'm guessing you probably could have done that on your own.
6 seconds 120 seconds or 1/20
18 hours, 37 minutes, 42 seconds = 67,062 seconds.
(120 seconds in 2 minutes) + (60 seconds*0.7 = 42) 120 + 42 = 162
Multiply the minutes by 60. Then add the 42 seconds.
6 hours 42 minutes is 24,120 seconds.
7542 =125 minutes and 42 seconds 125 minutes = 2 hours and 5 minutes therefore 7542 seconds = 2 hours 5 minutes and 42 seconds.
18 hours, 37 minutes, 42 seconds =67,062 seconds1,117.7 minutes18.6283 hours
42
60 seconds = 1 minute so 2520 seconds = 2520/60 minutes = 42 minutes.
2 hours = 2*60 = 120 minutesSo 2 hours 7 minutes = 120 + 7 = 127 minutes.127 minutes = 127*60 = 7620 secondsThen2 hours 7 minutes and 42 seconds = 7620 + 42 = 7662 seconds
7 hours, 12 minutes, 42 seconds
answer in minutes AND seconds - 58 minutes and 27 seconds answer in seconds - 3,507 seconds
60 + 42 = 102 102 x 60 = 6,120