# Lesson Growth and Decay Problems

Algebra ->  Algebra  -> Logarithm Solvers, Trainers and Word Problems -> Lesson Growth and Decay Problems      Log On

 Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help! Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

 Algebra: Logarithm Solvers Lessons Answers archive Quiz In Depth

This Lesson (Growth and Decay Problems) was created by by rapaljer(4667)  : View Source, Show
About rapaljer: Retired Professor of Mathematics from Seminole State College of Florida after 36 years.

This text was imported from http://www2.seminolestate.edu/rrapalje/CollegeAlgebra/One-Step-at-a-Time/CA%20One%20Step%20Ch%204/4.05%20Growth%20and%20Decay.htm by its author.

4.05   Applications--Growth and Decay

from College Algebra: One Step at a Time © 1996-2011

P. 531-539

Dr. Robert J. Rapalje, Retired

Seminole State College of Florida

 To see selected solutions in Living C O L O R  click here!

IMPORTANT NOTE:       In 15 years of teaching from this book, no one EVER solved these problems using Method II.  With calculators of today, Method I is more than adequate for the needs of College Algebra students.  Method II is for students in Differential Equations!!!

28.      How long will it take the population from # 26  to reach 200,000?

29.       The population of a city was 184,000 in the year 1996, and 310,000 in the year 2003.  At this rate of growth, find the value of k, and estimate the population that should be expected

a.        in 2008?                      b.      in 2010?                  c.    in 2015?

30.         How long will it take the population in the previous exercise

a.      to double?                             b.   to triple?

31.          How many years will it take this population reach 500,000?

32.         How many years will it take this population to reach 1,000,000?

[NOTE:   As a check, subtract the answers from the last two problems (#31 and 32) and compare to #30a) where the population doubles!  ]