math
posted by JT help please .
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.


i am getting 35 min and 7 sec. is that correct?

No.
5 gallons in 30 seconds
1 gallon in 6 seconds
9 gallons in 6 * 9 = 54 seconds
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