Question

In the year 2005, a total of 750 fish were introduced into a manmade lake. The fish population was expected to grow at a rate of 8.3% each year.

What will the fish population be in 2050?

Round to the nearest whole number.

Answer 1

to increase a number by \(8.3\%\) multiply it by \(100\%+8.3\%=108.3\%=1.083\)

Answer 2

to do it 45 times, multiply it by \((1.083)^{45}\)

Answer 3

i..e compute \[750\times (1.083)^{45}\] with a calculator