Just add together the 4 given dimensions to find the perimeter of the room.
60"+60"+40"+40"=200" 60"=5' 200"=16'8" 60"+60"+48"+48"=216" 60"=5' 48"=4' perimeter=216" or 18'
Perimeter = 40+40+60+60 = 200 units
200
If it is a square room then its perimeter is: 4*15 = 60 feet
60 x 40 = 2400 40 x 60 = 2400 4800 / 100 = 48
60 feet. Sorry, thought that was obvious.
The GCF is 4.
The average speed of the train for the entire trip would be the harmonic mean of 60 mph and 40 mph. Using the formula for harmonic mean: 2 * 60 * 40 / (60 + 40) = 48 mph. So, the average speed of the train is 48 mph.
48 60 72
60 feet or 10 yards - without the aid of a calculator !
40 = 23 x 5 48 = 24 x 3 60 = 22 x 3 x 5 GCF = 22 x 30 x 50 = 4
60 Minutes - 1968 The Killings in Haditha The Wrong Medicine 40-48 was released on: USA: 24 August 2008