Question

A fish tank in the shape of a rectangular prism has dimensions of 14 inches, 16 inches, and 10 inches. The tank contains 1680 cubic inches of water. What percent of the fish tank is empty?

Answer 1

25%

Explanation:

First find the maximum amount of water the tank can hold:

`16*14*10=2240 rarr` This is the volume of the tank

`2240-1680=560 rarr` 560 cubic inches of the tank is not filled up

`560/2240=0.25 rarr` 0.25 of the tank is empty

To convert a decimal to a percent, multiply the decimal by 100.

`0.25*100=25 rarr` The tank is 25% empty.