Question

Find the volume of a rectangular prism whose dimensions are twice those of another rectangular prism that has a volume of 120 cm3.

Answer 1

Let the other rectangular prism have dimensions x,y,z V = xyz = 120 ( from the "other" rectangle )
so volume of new rectangle = (2x)(2y)(2z) = 8 (xyz)

Answer 2

The volume of a rectangular prism:
V = W x L x H = 120 cm³
V 1 = 2 W x 2 L x 2 H =
= 8 · ( W x L x H ) = 8 V = 8 · 120 = 960 cm³
Answer:
The volume of the larger prism is 960 cm³.