6. In a tank there are 1000 gal of water with a concentration of 1 lb per gallon of pollutant. Water with a concentration of 0.2 lb per gal flows in at a rate of 4 gal per minute. At the same time, water flows out at the same rate through a hose at the bottom. When will the concentration of pollutant decrease under 0.5 lb per gal?

6. In a tank there are 1000 gal of water with a concentration of 1 lb per gallon of pollutant. Water with a concentration of 0.2 lb per gal flows in at a rate of 4 gal per minute. At the same time, water flows out at the same rate through a hose at the bottom. When will the concentration of pollutant decrease under 0.5 lb per gal?

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter3: Polynomial Functions

Section3.5: Mathematical Modeling And Variation

Problem 7ECP: The kinetic energy E of an object varies jointly with the object’s mass m and the square of the...

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