A town currently has a population of 34,728. The population of the town has been decreasing at a rate of 2.1% each year. If this trend continues, what will the population be at the end of 10 years? Round to the nearest whole number.
HINT: Use the formula f(t)= a x (1-r)^t

Question

A town currently has a population of 34,728. The population of the town has been decreasing at a rate of 2.1% each year. If this trend continues, what will the population be at the end of 10 years? Round to the nearest whole number.
HINT: Use the formula f(t)= a x (1-r)^t

anonymous · Answer

to decrease a number by $2.1\%$ multiply it by $100\%-2.1\%=97.9\%=.979$

anonymous · Answer

to do it ten times in a row, multiply it by $.979^{10}$ so your answer is 
$$34,728\times .979^{10}$$ and a calculator

anonymous · Answer

Which equals 28,087. Thank you.