Sunday

October 26, 2014

October 26, 2014

Posted by **Shadow** on Thursday, September 1, 2011 at 8:07pm.

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

Would it be, 3x+6x=72? Thanks

- Shadow -
**bobpursley**, Thursday, September 1, 2011 at 8:12pmNo. It wouldn't be that.

volumes of cubes is V=s^3 where s is side length.

72= s^3+ (2s)^3= s^3+8s^3

72=9s^3

and you find s, the side length of the smaller cube, and 2s is the side length of the larger cube.

- Shadow -
**Shadow**, Thursday, September 1, 2011 at 8:17pmI came up with 8=s^3, how would I solve this? Thanks

- Shadow -
**bobpursley**, Thursday, September 1, 2011 at 8:17pmTake the cube root of each side.

- Shadow -
**Shadow**, Thursday, September 1, 2011 at 8:20pmThanks for your help!

**Answer this Question**

**Related Questions**

math - Shane takes a big cube of butter with sides of length 5 from the ...

math-volume - I'm confused with how to solve this problem, so help would be ...

physics - A wooden cube with a specific gravity of 0.90 and side length 0.120 m ...

math - a cube with 2 in sides is placed on a cube with 3 in sides. then a cube ...

Math - A cube has all sides with a length of 7k^9n^8. The volume of a cube is ...

physics - A 19.3- gmass of gold in the form of a cube is 1.00 cmlong on each ...

physics - A 19.3- gmass of gold in the form of a cube is 1.00 cmlong on each ...

Physics - small cube of copper (density = 8930 kg/m3) is used to support a ...

principles of physics - A 19.3- gmass of gold in the form of a cube is 1.00 ...

Math--Volume and Surface Area - The volume of a cube is 125 cubic inches. Find ...