Question

Chantel wanted to add fish to her new fish tank. The pet store recommended that each fish needs 0.5 cubic feet of water for each fish. Chantel wants to put 7 fish in her tank and the tank is 2.5 feet long and 0.5 feet deep. How high should Chantel fill the water in the tank?

Answer 1

2.8 feet high

Explanation:

The volume of water required for the 7 fish is ...

(7 fish)(0.5 ft³/fish) = 3.5 ft³

The height of the water required is computed using the formula for the volume of a cuboid:

volume = length × depth × height

3.5 ft³ = (2.5 ft)×(0.5 ft)×height

height = (3.5 ft³)/(1.25 ft²) = 2.8 ft

Chantel should fill the water in the tank to a height of 2.8 feet.