POOLS Mr. Smith is draining his pool to have it cleaned. At 8:00 A.M., it had 2000 gallons of water and at 11:00 A.M. it had 500 gallons left to drain. What is the rate of change in the amount of water in the pool?
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Answers
SOLUTION
GIVEN
- Mr. Smith is draining his pool to have it cleaned.
- At 8:00 A.M., it had 2000 gallons of water and at 11:00 A.M. it had 500 gallons left to drain.
TO DETERMINE
The rate of change in the amount of water in the pool
EVALUATION
Here it is given that Mr. Smith is draining his pool to have it cleaned.
At 8:00 A.M., it had 2000 gallons of water and at 11:00 A.M. it had 500 gallons left to drain.
So the total amount of water drained
= 2000 gallons - 500 gallons
= 1500 gallons
Time taken
= 11 : 00 AM - 8 : 00 AM
= 3 hours
Hence the required rate of change in the amount of water in the pool
= 1500 / 3 gallons/hour
= 500 gallons/hour
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