The average mean is: (11+12+13+14+15)/5 = 13
6/13 - 4/12 =5/396/13 * 12/12 = 72/1564/12 * 13/13 = 52/156==============....................20/156 or 5/39
A right-angled triangle. Per Pythagoras: (5*5) + (12*12) = 13*13
The average of 12 and 13 = (12 + 3)/2 = 15/2 = 7.5
13+-12--5 = 6
add 5 + 13 + 12 and divide by 3
The average is 12.
The average height for a 12 year old would be 5"6-5'8 because I was this height when I turned 12. The average height for a 13 year old would be 5"10-5"13
The average mean is: (11+12+13+14+15)/5 = 13
13 - 12 + 5 = 6
13 + -12 - 5 = -4 13 + -12 = 1 - 5 = -4
12 - 13 cm (4 - 5 inches)
13 ((12 + 14)/2) = 13
(5/6) / (13/12) = (5/6) x (12/13) = (5/1) x (2/13) = 10/13
13 - 12 - (-5) 1 - (-5) 1 + 5 6
6/13 - 4/12 =5/396/13 * 12/12 = 72/1564/12 * 13/13 = 52/156==============....................20/156 or 5/39
A right-angled triangle. Per Pythagoras: (5*5) + (12*12) = 13*13