Question

Zia is building a plastic model rocket that has the combined shape of a cone and a cylinder as shown. Additionally, the cylinder has a hemisphere hollowed out of its bottom. the plastic for the cone weights 1.4 grams per cubic centimeter and the plastic of the cylinder weighs only 0.8 grams per cubic centimeter. What is the volume of the plastic that remains?

Answer 1

The answer would be A. 1 1/5

48/40 = 1 8/40

1 8/40 Simplify to 1 1/5

Hope this helps!