The sides of one cube are twice as long as the sides of s second cube. what is the side length of each cube if the total volume of the cubes is 72 cm^3

Let the side of the second cube be x, then the side of the second cube is 2x.

Volume of a cube = s^3
x^3 + (2x)^3 = 72
x^3 + 8x^3 = 72
9x^3 = 72
x^3 = 72/9 = 8
x = cube root (8) = 2

Therefore, the side length of the first cube is 2x = 2(2) = 4cm
while the second cube is 2 cm long.

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