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Solve the problem.
-A 100 gal tank is half full of distilled water. At time = 0, a solution containing 2 lb/gal of concentrate enters the tank at the rate of 4 gal/min, and the well-stirred mixture is withdrawn at the rate of 3 gal/min. When the tank
Is full, how many pounds of concentrate will it contain?
Nighttime
The period of darkness between sunset and sunrise when no sunlight is visible.
Unarmed
Without weapons; a state or condition of not carrying or using any form of weapon.
Addict Robbers
Individuals who commit theft or robbery primarily to support a drug addiction.
Opportunist Robbers
Criminals who commit robberies taking advantage of immediate situations or vulnerabilities without extensive planning.
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