In 2012, 34.1% of all glass containers were recycled. A beverage company used 450,000lb of glass containers per year. After recycling, the amount of glass, in pounds, still in use after t years is given by N(t)=450,000(0.395)t. a) Find N(7), and explain its meaning. b) Find N′(7), and explain its meaning. c) When will 5% of the original amount of glass still be in use?

In 2012, 34.1% of all glass containers were recycled. A beverage company used 450,000lb of glass containers per year. After recycling, the amount of glass, in pounds, still in use after t years is given by N(t)=450,000(0.395)t. a) Find N(7), and explain its meaning. b) Find N′(7), and explain its meaning. c) When will 5% of the original amount of glass still be in use?

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter5: Inverse, Exponential, And Logarithmic Functions

Section: Chapter Questions

Problem 78RE

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