Question

You are designing an aquarium that is to have a tank holding 225,000 gallons of water. The tank will be 100 feet long and 20 feet wide. Note, 7.5 gallons = 1 cubic foot of water how high will the tank need to be

Answer 1

(100*20*x)*(7.5 gallon/ 1ft^3) = 225,000 gallon
x=225,000/(100*20*7.5)
x=15 ft