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?
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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?
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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
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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
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OpenStudy (anonymous):
l=4,w=4, and h=4
OpenStudy (chihiroasleaf):
ah..., I missread the question
yes, then find the volume