China's one-child policy was implemented in 1978 with a goal of reducing China's population to 700 million by 2050. The population of China in 2000 is about 1.2 billion. Suppose that China's population declines at a rate of 0.5% per year. Will this rate of decline be sufficient to meet the original goal?

Question

China's one-child policy was implemented in 1978 with a goal of reducing China's population to 700 million by 2050.  The population of China in 2000 is about 1.2 billion.  Suppose that China's population declines at a rate of 0.5% per year.   Will this rate of decline be sufficient to meet the original goal?

anonymous · Answer

@nincompoop

anonymous · Answer

Exponential decay.

anonymous · Answer

i have the answer but i need the how and why

anonymous · Answer

1.2(1-.005)^50= .933975 
but why is it to the 50th power?

anonymous · Answer

no clue but i compared that to the right answer and it was right but no clue why its carried to the 50th

anonymous · Answer

but where doeseth thou get the 50 from

anonymous · Answer

We're starting in the year 2000 with a population of 1.2mil.
Initial population: 1.2mil
Decay rate: .5% per year  (which is .005 as a decimal)
Amount of time until 2050: 50 years

anonymous · Answer

ohhhhhhhhhhhh <33333

anonymous · Answer

E>

anonymous · Answer

damn epic answer nin how u get that wait.... is this question on google.....

anonymous · Answer

-_- except obviously he copied and pasted it because the spacing is messed up.