3. A water tank that initially contained 200 gallons of water is leaking water at a constant rate of 4 gallons per minute. For the amount of time the tank has water, which of the following function models gives the number of gallons, G, in the tank t minutes after the leak started ?

Answer and Explanation

Your Answer is

Correct Answer is B

Explanation

If water leaks 4 gallons per minute, then the amount of water leaked after t minutes is 4t gallons. There are 200 gallons of water in the water tank originally, and after t minutes, the remaining water volume is 200 gallons minus 4t gallons, that is, 200-4t.