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Mathematics 7 Online
OpenStudy (anonymous):

Jennifer wants to use 1-inch cubes to build a larger cube with edges 3 inches long. How many 1-inch cubes will she need?

OpenStudy (anonymous):

27

OpenStudy (anonymous):

Please help me !!! i need to know the steps to get 27

OpenStudy (anonymous):

9*3=27

OpenStudy (anonymous):

since she want to make a cube that is 3 inches using 1 inch cubes she would need to make three levels of nine 1 inch cubes

OpenStudy (anonymous):

9 times 3 is 27

OpenStudy (anonymous):

but how did you get 9?

OpenStudy (anonymous):

cube has equal side lengths that, in this case, are 1 inch long. Whatshername needs 3 inches per side so you need 3, 1 inch cubes to get that height. There's 9 cubes per face times 3 makes 27

OpenStudy (anonymous):

Use your imagination, have you ever seen a rubix cube it's the same thing

OpenStudy (anonymous):

exactly how @cblrtopas put it

OpenStudy (anonymous):

Actually there's a formula area of a square is L^3 ; where L is the side length. In this case L=3 inches 3^3=27

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