a water tank decreases by 10 gallons every 3 hours every day. what is the total change in the amount of water in the tank after 6 days? (1 point)

responses

480 gallons
80 gallons
−480 gallons
−80 gallons

1 answer

To find the total change in the amount of water in the tank after 6 days, we need to calculate the change per day and then multiply it by the number of days.

Since the tank decreases by 10 gallons every 3 hours, that means it decreases by 10/3 gallons per hour.

There are 24 hours in a day, so the tank decreases by 10/3 * 24 = 80 gallons per day.

After 6 days, the total change in the amount of water in the tank is 80 * 6 = 480 gallons.

Therefore, the correct answer is 480 gallons.