Question

A certain forest covers an area of 2300 km. Suppose that each area decreases by 5.75%. What will be the area after 12 years?

Answer 1

The correct answer is 2043 km².

Explanation:

Given:

Starting area,

A = 2300 km²

Rate of decreasing,

r = 5.75%

Time,

t = 12 years

As we know,

⇒
`y = A(1-r)^t`

By substituting the values, we get

`=2300(1-0.0575 )^(12)`

`=2300(0.9425)^(12)`

`=2300* 0.8883`

`=2043 \ km^2`