SOLUTION: A certain forest covers an area of 3900 km2 . Suppose that each year this area decreases by 7.75% . What will the area be after 15 years

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Question 1059559: A certain forest covers an area of
3900
km2
. Suppose that each year this area decreases by
7.75%
. What will the area be after
15
years
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there,
Area = 3900 km^2
Decrease = 7.75%
100% - 7.75% = 92.25%
92.25% = 92.25/100 = 0.9225.
Area x 0.9225^15
After 15 years area = 1162.95 km^2 (2 decimal places)
Hope this helps :-)