Question

8,520 gallons of water begins to drain at a rate of 12 gallons per minute. Which equation can be used to find the number of minutes, m, it will take for the pool to be half full?

Answer 1

Answer:

The time taken to drain water to be half full is 5 hours 55 min .

Step-by-step explanation:

Given as :

The total quantity of water pool = 8520 gallons

The rate of water drain = 12 gallons per min

The time taken to drain water to be half full = t min

Now, According to question

Time of water drain = $\dfrac{\textrm total quantity of water in pool}{\textrm rate of water drain}$

Or, time = $\dfrac{\textrm 8520 gallons}{\textrm 12 gallons per min}$

Or, time = 710 minutes

So, The time taken to full empty the pool = 710 minutes

Again, time taken to ran water to half full = $\dfrac{710}{2}$

Or, t = 355 minutes

So, time taken to drain water to be half full = t = 355 min = 5 hours 55 minutes

Hence, The time taken to drain water to be half full is 5 hours 55 min . Answer