SOLUTION: how much salt is in the tank after one hour? What is the concentration of salt in the tank after one hour? A large tank is filled with 500gal of water with 500lbs of salt. Pure

Question 878697: how much salt is in the tank after one hour? What is the concentration of salt in the tank after one hour?
A large tank is filled with 500gal of water with 500lbs of salt. Pure water is pumped into the tank at a rate of 3gal/min. The well mix solution is pumped out at a rate of 8gal/min..

Answer by josgarithmetic(39613) (Show Source): You can put this solution on YOUR website!
The amount of salt is not changing. Water is being added, which changes the volume and the concentration.

How much salt in the tank after 1 hour?
500 pounds of salt, the same as at the beginning.

Water pumped into tank at 3 gallons per minute, which is .
Amount of Water after 1 Hour: .
The salt concentration is then 500 pounds SALT in 680 gallons of WATER.

Decide what kind of concentration units you want and adjust to fit.
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