Mathematics, 01.10.2019 19:30 rozzy5132
Initially 5 grams of salt are dissolved into 10 liters of water. brine with concentration of salt 5 grams per liter is added at a rate of 3 liters per minute. the tank is well mixed and drained at 3 liters per minute. let xbe the amount of salt, in grams, in the solution after t minutes have elapsed. find a formula for the rate of change in the amount of salt, dx/dt, in terms of the amount of salt in the solution x. dxdt=equation editorequation editorgrams/minutefind a formula for the amount of salt, in grams, after tminutes have elapsed. x(t)=equation editorequation editorgramshow long must the process continue until there are exactly 20 grams of salt in the tank?
Answers: 1
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Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.
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Initially 5 grams of salt are dissolved into 10 liters of water. brine with concentration of salt 5...
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