SOLUTION: Topics In Contemporary Math Exponential Growth 5) The population of bison was almost hunted to extinction when the United States expanded westward. The population decreased

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Question 1190098: Topics In Contemporary Math
Exponential Growth
5) The population of bison was almost hunted to extinction when the United States
expanded westward. The population decreased by 40% per year when the expansion
began in 1803. If the herds of bison originally contained 500,000 bison, how many were
left in 1820?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
You already asked five questions. They are all on one mathematical topic, all very similar.



Along with this one,
1190097
1190096
1190095
1190093


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THIS one:
Time 0, at year 1803
Time 17, at year 1820

Decrease 40% each year is the same as keeping 60% each year.
highlight_green%28y=500000%280.6%29%5Ex%29, for population y, time x in years count.

Part of your question asks, find y when x is 17.