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A 100-gal tank is used to hold 5 lb of salt dissolved in 50 gallons of water. A solution of salt per gallon is allowed to flow into the tank at the rate of 2 gallons per minute. uniform by stirring flows out at a rate of 1 gallon per minute. Determine how long amount of salt in the tank to reach 10 lb. a. 18.3 min b. 15.6 min c. 22.8 min d. 17

A 100-gal tank is used to hold 5 lb of salt dissolved in 50 gallons of water. A solution of salt per gallon is allowed to flow into the tank at the rate of 2 gallons per minute. uniform by stirring flows out at a rate of 1 gallon per minute. Determine how long amount of salt in the tank to reach 10 lb. a. 18.3 min b. 15.6 min c. 22.8 min d. 17

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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A 100-gal tank is used to hold 5 lb of salt dissolved in 50 gallons of water. A solution containing 0.2 lb of salt per gallon is allowed to flow into the tank at the rate of 2 gallons per minute. The solution kept uniform by stirring flows out at a rate of 1 gallon per minute. Determine how long it will take for the amount of salt in the tank to reach 10 lb. a. 18.3 min b. 15.6 min c. 22.8 min d. 17.5 min
Transcribed Image Text:A 100-gal tank is used to hold 5 lb of salt dissolved in 50 gallons of water. A solution containing 0.2 lb of salt per gallon is allowed to flow into the tank at the rate of 2 gallons per minute. The solution kept uniform by stirring flows out at a rate of 1 gallon per minute. Determine how long it will take for the amount of salt in the tank to reach 10 lb. a. 18.3 min b. 15.6 min c. 22.8 min d. 17.5 min
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