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nata0808 [166]
3 years ago
13

A certain forest covers an area of 4200 km2 . suppose that each year this area decreases by 8.5% . what will the area be after 1

5 years? use the calculator provided and round your answer to the nearest square kilometer.
Mathematics
1 answer:
Margarita [4]3 years ago
8 0
If the area decreases by 8.5%, that leaves 100-8.5, or 91.5% of the forest remaining. So, at the end of 15 years, you have:
(.915)^15=.2638, or 26.38% of the forest left.
.2638 x 4200=1108 km² of the forest remains
☺☺☺☺
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