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?



Solution




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?



Solution




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?



Solution




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Author: Nancy Marcus

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