Math
posted by JT help please .
you have a barrel with water. after 30 seconds there is 14 gallons left. one minute you have 9 gallons left. determine the time the barrel was empty.

Math 
Arora
If after 30 seconds there are 14 gallons left, and after 60 seconds there are 9 gallons left,
Then you can see that in the 30 second gap, 5 gallons leaked out. So water is emptying at 5 gallons/30 seconds or 1 gallon every 6 seconds.
Can you use this rate of emptying and the initial number of gallons given to find the time? 
Math 
JT help please
i am getting 35 min and 7 sec. is that right?

Math 
Ms. Sue
No. How can you get more than a half hour for 9 gallons when 1 gallon is emptied every 6 seconds?
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determine the time the barrel was empty. if after 30 seconds there are 14 gallons of water left and after one minute there are 9 gallons left.