The graph shows a 10,000 gallon pool being emptied. On the y axis (gallons of water) it begins at 0, 1,000; 2,000; 3,000; 4,000; 5,000; 6,000; 7,000; 8,000; 9,000 10,000 on the x axis (hours) it begins with 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12. The line is declining from the point of 10,000 where it stopped at 5,000 over the 10 on the x axis.
How many gallons are being emptied per hour?
The pool is being emptied at a rate of 500 gallons per hour (10,000 gallons divided by 10 hours = 500 gallons per hour).
I too, thought the answer was 500 gallons per hour, I submitted that answer to my teacher and it was wrong.
Let's recalculate based on the information provided.
The pool started at 10,000 gallons and ended at 5,000 gallons over a period of 10 hours.
10,000 gallons - 5,000 gallons = 5,000 gallons removed over 10 hours
Therefore, the rate of emptying is 5,000 gallons / 10 hours = 500 gallons per hour.
It seems that 500 gallons per hour is indeed the correct answer based on the information given. You may want to clarify with your teacher as to why it was marked wrong.