Answer: Plugging in the values given, we get: time = 12 quarts / (9 quarts/6 seconds) = 8 seconds.
Explanation:
At a rate of 9 quarts of water per 6 seconds, it will take the hose 8 seconds to emit 12 quarts of water.
To determine this, we can use the formula for rate: rate = quantity/time. Rearranging this formula to solve for time gives us: time = quantity/rate.
Plugging in the values given, we get: time = 12 quarts / (9 quarts/6 seconds) = 8 seconds.