Initially 10 grams of salt are dissolved into 35 liters of water. Brine with concentration of salt 4 grams per liter is added at a rate of 5 liters per minute. The tank is well mixed and drained at 5 liters per minute. Let x be the amount of salt, in grams, in the solution after t minutes have elapsed. Find a formula for the incremental change in the amount of salt, Ax, in terms of the amount of salt in the solution x and the incremental change in time At. Enter At as "Deltat". Ax = grams help (formulas) Find a formula for the amount of salt, in grams, after t minutes have elapsed. x(t) 140-130e grams help (formulas) How long must the process continue until there are exactly 25 grams of salt in the tank? minutes help (numbers) Book: Section 1.4 of Notes on Diffy Qs

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ISBN:9781337282291
Author:Ron Larson
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Chapter3: Polynomial Functions
Section3.5: Mathematical Modeling And Variation
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Initially 10 grams of salt are dissolved into 35 liters of water. Brine with concentration of salt 4 grams per liter is added at a rate of 5 liters per minute. The tank is well mixed and
drained at 5 liters per minute.
Let x be the amount of salt, in grams, in the solution after t minutes have elapsed. Find a formula for the incremental change in the amount of salt, Ax, in terms of the amount of
salt in the solution x and the incremental change in time At. Enter At as "Deltat".
Ax = grams help (formulas)
Find a formula for the amount of salt, in grams, after t minutes have elapsed.
x(t)
140-130e
grams help (formulas)
How long must the process continue until there are exactly 25 grams of salt in the tank?
minutes
help (numbers)
Book: Section 1.4 of Notes on Diffy Qs
Transcribed Image Text:Initially 10 grams of salt are dissolved into 35 liters of water. Brine with concentration of salt 4 grams per liter is added at a rate of 5 liters per minute. The tank is well mixed and drained at 5 liters per minute. Let x be the amount of salt, in grams, in the solution after t minutes have elapsed. Find a formula for the incremental change in the amount of salt, Ax, in terms of the amount of salt in the solution x and the incremental change in time At. Enter At as "Deltat". Ax = grams help (formulas) Find a formula for the amount of salt, in grams, after t minutes have elapsed. x(t) 140-130e grams help (formulas) How long must the process continue until there are exactly 25 grams of salt in the tank? minutes help (numbers) Book: Section 1.4 of Notes on Diffy Qs
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