Johnny plays for the Scott Middle School football team. This is how many yards Johnny gained in the first five games. Game 1: 10 yards, Game 2:5
yards, Game 3: 8 yards, Game 4: 11 yards, Game 5: 8 yards. Calculate the
MEAN using this set of data. *

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm

The variables should add up to equal 1