There are 8 gallons of water in a tank which can hold 15 gallons. How many gallons can be added to this tank.
15 - 8 = ______ gallons
10
To find out how many gallons can be added to the tank, we need to determine the remaining capacity of the tank.
The tank initially has 8 gallons of water, and it can hold a total of 15 gallons. So, the remaining capacity of the tank can be calculated by subtracting the current amount of water from the total capacity:
Remaining capacity = Total capacity - Current amount of water
Remaining capacity = 15 gallons - 8 gallons
Remaining capacity = 7 gallons
Therefore, you can add up to 7 gallons of water to this tank.