Question

---Finding a final amount in a word proA certain forest covers an area of 4000 km.If it decreases by 8% each year. Find the area after 9 yearsUse the calculator provided and round your aХ?

Answer 1

Since it decreases by 8 % each year

First, we will find 8% of 4000 km²

8% x 4000km²

8 /100 x 4000km²

8 x 40km²

= 320km²

This implies the area decreases by 320 km² each year

In 9 years the area will decrease by 320 x 9 = 2880km²

The area of the forest after 9years = 4000km² - 2880km² = 1120 km²