SOLUTION: solve: You pull the plug from the bathtub, after 40 seconds, there are 14 gallons of water left in the tub. After one minute (60 seconds), there are 10 gallons left. Assume that t

Algebra ->  Rate-of-work-word-problems -> SOLUTION: solve: You pull the plug from the bathtub, after 40 seconds, there are 14 gallons of water left in the tub. After one minute (60 seconds), there are 10 gallons left. Assume that t      Log On


   



Question 893970: solve: You pull the plug from the bathtub, after 40 seconds, there are 14 gallons of water left in the tub. After one minute (60 seconds), there are 10 gallons left. Assume that the water continues to drain at this constant rate, how long will it take to completely drtain the tub and how many gallons were in the tub originally?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
(40,14),(60,10)
y= -0.2x+22
set tub to zero
0= -0.2x+22
.2x=22
.1x=11
x=110 seconds

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