A tank initially contains 150 lb of salt dissolved in 450 gal of water. Saltwater containing 2 lb of salt per gal enters the tank at the rate of 5 gal per min. The mixture (kept uniform by stirring) is removed at the same rate. How many pounds of salt are in the tank after 2 hours?
What will be an ideal response?
702.30 lb
Mathematics
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A. 
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C. 
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Mathematics