a: 20/60 = 1/3 and b: 40/60 = 2/3
20/12 = 5/3 hour = 12/3 hours = 1hour 40minutes
The decrease is 64 - 25 = 39
The percent in the decrease of 25 to 20 = 20%
1 liter = 1,000 ml 0.1 liter = 100 ml At 1 ml per minute, 100 ml takes 100 minutes. That's 1hour 40minutes.
1hour 40minutes
a: 20/60 = 1/3 and b: 40/60 = 2/3
92/55 = 1.673 hours (rounded) = 1hour 40minutes 21.82seconds (rounded)
20/12 = 5/3 hour = 12/3 hours = 1hour 40minutes
about 1hour 25 mins
20 x (3hours + 20minutes) = 60hours + 400minutes = 60hours + 6hours + 40minutes =66hours 40minutes=======================Another approach:3hours + 20minutes = 180minutes + 20minutes = 200minutes20 x (200minutes) = 4,000minutes =3,600minutes + 360minutes + 40minutes = 60hours + 6hours + 40minutes =66hours 40minutes
25/20 = 1.25 hours = 1hour 15minutes
The decrease is 64 - 25 = 39
280minutes
The percent in the decrease of 25 to 20 = 20%
There is a 25% decrease in 280 to 210. 25% = 70
1 liter = 1,000 ml 0.1 liter = 100 ml At 1 ml per minute, 100 ml takes 100 minutes. That's 1hour 40minutes.