A 200 gallon tank initially contains 100 gallons of water

Last updated: 4/28/2023

A 200 gallon tank initially contains 100 gallons of water with 20 pounds of salt A salt solution with 7 10 pou of salt per gallon is added to the tank at 10 gal min and the resulting mixture is drained out at 5 gal min E Q t denote the quantity lbs of salt at time t min a Write a differential equation for Q t which is valid up until the point at which the tank overflows Q t b Find the quantity of salt in the tank as it s about to overflow