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A500 gallon tank initially contains 200 gallons of water with 5 lbs of salt dissolved in it. water enters the tank at a rate of 2 gal/hr and the water entering the tank has a salt concentration 1/5 (1+ cos t) of lbs/gal. if a well-mixed solution leaves the tank at a rate of 2 gal/hr, how much salt is in the rank when it overflows?
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Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?
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A500 gallon tank initially contains 200 gallons of water with 5 lbs of salt dissolved in it. water e...
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