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( PLS EXPLAIN ! ) A rectangular prism has a length of 7 cm, a width of 4 cm, and a height of 2 1/2 cm. The prism is filled with cubes that have edge lengths of 1/2 cm. How many …
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( PLS EXPLAIN ! ) A rectangular prism has a length of 7 cm, a width of 4 cm, and a height of 2 1/2 cm. The prism is filled with cubes that have edge lengths of 1/2 cm. How many …
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Feb 27, 2018
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( PLS EXPLAIN ! )
A rectangular prism has a length of 7 cm, a width of 4 cm, and a height of 2 1/2 cm.
The prism is filled with cubes that have edge lengths of 1/2 cm.
How many cubes are needed to fill the rectangular prism?
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Durga
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so
vprism/vcube≤number of cubes
vprism=length times width times height
for this one, 1/2=0.5 and 2 and 1/2=2.5
vprism=7 times 4 times 2.5=70
vcube=side^3=0.5^3=0.15
vprism/vcube=70/0.125=560
560 cubes willl fit
Sooglejay
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Mar 6, 2018
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Sooglejay
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