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Donna is filling a tank with water at a rate of 

2

 gallons per minute. The tank already had 

140

 gallons of water in it. Suppose the tank holds a total of 

200

gallons of water. How much longer will it take her to fill the tank?

 Oct 29, 2018
 #1
avatar+18754 
+1

Since the tank holds 200 gallons ad it has 140 gallons in it, there are only 200-140 = 60 gallons left to fill.

   60 galllons/ 2gal/min = 30 minutes

 Oct 29, 2018

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