Question

[100 pts] A musician purchases a pair of cube-shaped speakers that are 9 inches across. If the face of the speaker takes up of the total volume of the speaker, how much volume is left in both speaker cabinets?

Answer 1

Answer:1215 cu. in.

Explanation:

Answer 2

1215 cubic inches

Explanation:

If the cubes are 9 inches across, then each one has a volume of 9^3=729 cubic inches. If 1/6 of this is taken up by the face, then 5/6 is left over for the cabinet. 5/6*729=607.5 cubic inches for a single speaker, which when multiplied by 2 to get both of them yields 1215 cubic inches, or answer choice D. Hope this helps!