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Mathematics 21 Online
OpenStudy (anonymous):

A cube has 2 faces painted black and the remaining faces painted white. The total area of the white faces is 64 square inches. What is the volume of the cube, in cubic inches?

OpenStudy (anonymous):

tips?

OpenStudy (anonymous):

hello

OpenStudy (phi):

what fraction of the cube's surface is white?

OpenStudy (anonymous):

hello

OpenStudy (chihiroasleaf):

how many side with white faces?

OpenStudy (phi):

start with how many sides does a cube have?

OpenStudy (anonymous):

well, a cube has 6 faces, right?

OpenStudy (anonymous):

so each side would equal 4

OpenStudy (anonymous):

4 times 4=16=face

OpenStudy (anonymous):

16 times 4=4 faces=64

OpenStudy (anonymous):

64"= 4 square sides so each face is 16", and therefore is a 4"x4" sqaure, which mean that each length is 4", so 4*4*4= 64 cubic inchs

OpenStudy (anonymous):

ahhh

OpenStudy (anonymous):

the volume of the cube!(derp)

OpenStudy (phi):

6 faces. 4 of them are white. 4/6 of the surface is white or 2/3

OpenStudy (anonymous):

4 times 4 times 4=64

OpenStudy (anonymous):

l=4,w=4, and h=4

OpenStudy (chihiroasleaf):

ah..., I missread the question yes, then find the volume

OpenStudy (anonymous):

the volume is 64

OpenStudy (anonymous):

next problem?

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