Question

Mrs. Vega bought a new cubic aquarium for her turtles. if the volume of the aquarium is 64 cubic feet, what is the length of one side?

Answer 1

Answer:   4 feet

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Reason:

Take the cube root of 64 to get 4

$\sqrt[3]{64} = \sqrt[3]{4^3} = 4$

The general rule is

$\sqrt[3]{\text{x}^3} = \text{x}$

where x is any real number.

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Check:

If each side of this cube is 4 feet, then,

volume = length*width*height

volume = 4*4*4

volume = 64 cubic feet