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gizmo_the_mogwai [7]
3 years ago
11

3D shape practice. I'm stuck in this problem. Pleas help.

Mathematics
1 answer:
timofeeve [1]3 years ago
5 0
1)we calculate the volume of the right rectangular prism
volume=lenght x width x heigth
volume=12 ft * 8.5 ft * 4 ft=408 ft³

density= mass / volume  ⇒ mass=volume * density.
density=0.25 pound /ft³

2) we calculate the mass of the right rectangular prism.
mass=volume * density
mass=408 ft³(0.25 pound / ft³)=102 pounds.

answer: c.  102

 
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