Suppose you start with one liter of vinegar and repeatedly remove 0.13 L, replace with water, mix, and repeat. a. Find a formula for the concentration after n steps. b. After how many steps does the mixture contain less than 5% vinegar?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section: Chapter Questions
Problem 15T
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Suppose you start with one liter of vinegar and repeatedly remove 0.13 L, replace with water, mix, and
repeat.
a. Find a formula for the concentration after n steps.
b. After how many steps does the mixture contain less than 5% vinegar?
Transcribed Image Text:Suppose you start with one liter of vinegar and repeatedly remove 0.13 L, replace with water, mix, and repeat. a. Find a formula for the concentration after n steps. b. After how many steps does the mixture contain less than 5% vinegar?
A lake initially contains 3000 fish. Suppose that in the absence of predators or other causes of removal, the
fish population increases by 6% each month. However, factoring in all causes, 400 fish are lost each month.
How many fish will be in the pond after 7 months? (Don't round until the very end.)
Transcribed Image Text:A lake initially contains 3000 fish. Suppose that in the absence of predators or other causes of removal, the fish population increases by 6% each month. However, factoring in all causes, 400 fish are lost each month. How many fish will be in the pond after 7 months? (Don't round until the very end.)
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