Question

An aquarium in the shape of a right rectangular prism is 12.5 inches long, 6 inches wide and 8 inches high. What is the total amount of water needed, to the nearest cubic inch, to fill 90% of the aquarium with water?

Answer 1

The total amount of water needed is 540 cubic inches.

Explanation:

A cubic prism has three dimension. Lenght l, width w and height h.

It's volume is:

`V = l*w*h`

In this question:

`l = 12.5, w = 6, h = 8`

Dimensions in inches, so the volume will be in cubic inches.

`V = 12.5*6*8 = 600`

The volume is 600 cubic inches.

What is the total amount of water needed, to the nearest cubic inch, to fill 90% of the aquarium with water?

This is 90% of 600. So

0.9*600 = 540

The total amount of water needed is 540 cubic inches.