| APPLICATIONS OF EXPONENTIAL |
| AND | |
| LOGARITHMIC FUNCTIONS |
DECAY WORD PROBLEMS:
Work the following problems. Click on solution if you want to review
the solution.
Problem 1: If you start a biology experiment with 5,000,000 cells
and half the cells are dying every 10 minutes, how long will it take to
have less than 1,000 cells?
Problem 2: If a radioactive substance has a half-life of 300 years,
how long will it take for the substance to decay to 10 of its initial
amount?
Problem 3: If Jonly, Iowa had a population of 120,000 in 1945 and a
population of 65,000 in 1996, how large was the population in 1960 assuming
an exponential population model?
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Author: Nancy Marcus