# Freshman Algebra 1 Honors

This is Growth and Decay

1. The U.S. populace increases at 0.91% per year. If the population in 2008 was 303,146,000 , what will it be in 2017?

2. A mechanist bought materials for about \$125,000. He wants to calculate it's value in ten years. If tye materials depreciate 15% a year, how much will it be worth in ten years

1. p = 303146000 (1 + .0091)^(2017-2009)

or ... p = 303146000 e^[.0091(2017-2009)]

v = 125000 (1 - .15)^10

posted by Scott

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