A cube-shaped dog kennel is replaced by a larger kennel. The volume of the original kennel was 27 cubic feet. The volume of the new kennel is 64 cubic feet. How many feet were added to each edge length of the kennel?

Answer: 12.3 feet

Step-by-step explanation:

So, volume = Length x width x height

volume: 27 = l x w x h

since its a cube--all sides are the same,

27/3 = 9

l=9

w=9

h=9

Now for the new kennel:

64 = l x w x h

64/3 = 21.3

l=21.3

w=21.3

h=21.3

now simply subtract!

21.3-9 = 12.3