A swimming pool holds 2,640,000 quarts of water. How many gallons does it hold?
Enter your answer as a number, like this: 42

660,000 gallons.

Step-by-step explanation:

Quarts refers to a unit of measurement of volume of a fluid such as water. Quart is typically a standard unit in the British Imperial (imperial quarts) and United States of America (U.S) Customary systems (liquid and dry quarts) of measurement as a unit of volume or capacity.

Generally, there are three (3) types of quarts still in use today; dry quarts, imperial quarts and the liquid quarts.

A quart has the symbol "qt" and it's typically calculated as a quarter (¼) of a gallon.

Mathematically, it is given by the expression;

Therefore,

Given that the volume or capacity of the swimming pool is 2,640,000 quarts.

Hence, the gallons of water of a swimming pool holding 2,640,000 quarts of water is 660,000 gallons.