SOLUTION: Here are two water tanks of water. The 50 gallon is empty and is then filled at at rate of 2 gallons per minute. At the exact same time, the 140 gallon tank starts out completely f
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Question 260068: Here are two water tanks of water. The 50 gallon is empty and is then filled at at rate of 2 gallons per minute. At the exact same time, the 140 gallon tank starts out completely full and is being emptied at a rate of 5 gallons per minute, when will both tanks contain the same amount of water? write an formula and graph this situation. Found 2 solutions by richwmiller, stanbon:Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! 2t=140-5t
7t=140
t=20
2t*20=40
140-5*20=40
After 20 minutes they will each have 40 gallons
y=2t
y=140-5t
(20,40) is where the lines cross
You can put this solution on YOUR website! Here are two water tanks of water. The 50 gallon is empty and is then filled at at rate of 2 gallons per minute. At the exact same time, the 140 gallon tank starts out completely full and is being emptied at a rate of 5 gallons per minute, when will both tanks contain the same amount of water? write an formula and graph this situation.
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1st tank Equation:
Amount in tank = 0 + 2t gallons
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2nd tank Equation:
Amount in tank = 140 - 5t gallons
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Problem equation:
Amount in tank #1 = Amount in tank #2
0+2t = 140-5t
7t = 140
t = 20 minutes
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Cheers,
Stan H.
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