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A homeowner is draining her swimming pool. The volume of water in the pool changes by −12 gallons every minute.

What is the change in volume over 60 minutes?

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The drainage rate is -12 gallons / minute.

To answer this question, multiply -12 gallons / minute by 60 minutes.

That comes to -720 gallons, the volume by which the water in the pool decreases in an hour.
TaeKwonDoIsDead

So, water decreases by 12 gallons EVERY minute.


How much water will decrease in 60 minutes?

[tex]12*60=720[/tex] gallons

So, the volume changes by 720 gallons in 60 minutes.


ANSWER: Volume decreases 720 gallons in 60 minutes.


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