Final answer:
The water is leaking at the rate of 0.1 gallon/minute.
Step-by-step explanation:
To determine the rate at which the water is leaking, we can subtract the final amount of water from the initial amount and divide it by the time it took for the water to leak. In this case, the initial amount is 5 gallons and the final amount is 4 gallons. So, the amount of water leaked is 5 - 4 = 1 gallon. The time it took for the water to leak is 10 minutes. Therefore, the rate at which the water is leaking is 1 gallon / 10 minutes = 0.1 gallon/minute.