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13 August, 15:31

The volume of a cube is given by V = x cubed where x is the length of an edge of the cube. A cube shaped end table has the volume of 3 3/8 cubic feet. What is the length of an edge of the end of the table? Explain how you solved this problem.

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  1. 13 August, 15:51
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    It'll be easer if we write the volume of the table as a decimal - 3 3/8 is as much as 3,375. Now we just have to find the cube root of 3,375:

    ∛3,375 = 1,5

    Doublecheck: 1,5³ = 1,5 * 1,5 * 1,5 = 3,375, so it's correct.

    Answer: The length of the edge is 3,375 feet.
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