a marble paperweight shaped similar to a prism weighs 0.2 lb. how much does a similarly shaped marble paperweight weigh if its length, width, and height are tripled?
The volume of the prism V = k lwh where k is the proportionality constant
If we increase the dimensions by three, the new volume will be 9V Since material is the same, the mass of the larger prism will be 9 times greater than the smaller one.