60 min/hour, so 1400 min / 60min/hr = 23.33 hours Let's check our work, OK? 23.33hr x 60min/hr = 1399.8 = (four sig figs) 1400
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60 minutes = 1 hour so 575 minutes = 575/60 hours = 9.5833... hours
300 minutes. 60 minutes in an hour times five hours so: 60 minutes x 5 hours = 300 minutes
7 hours and 30 minutes
1 hour 52 minutes
129 minutes is equal to 2 hours and 9 minutes.