The population of a country has a relative growth rate of 3% per year. The government is trying to reduce the growth rate to 2%. The population in 1995 was approximately 110 million. Find the projected population for the year 2035 for the following conditions. (Round your answers to the nearest whole number.)
(a) The relative growth rate remains at 3% per year.
million people

(b) The relative growth rate is reduced to 2% per year.
million people

Question

The population of a country has a relative growth rate of 3% per year. The government is trying to reduce the growth rate to 2%. The population in 1995 was approximately 110 million. Find the projected population for the year 2035 for the following conditions. (Round your answers to the nearest whole number.)
(a) The relative growth rate remains at 3% per year.
  million people

(b) The relative growth rate is reduced to 2% per year.
  million people

anonymous · Answer

Relative growth rate of a population is solved using the formula:

P = N*e^(rt)

P = final population
N = initial population
r = growth rate
t = time

anonymous · Answer

so for a is it P=2035*e^(.03*t)

anonymous · Answer

i dont get how to put it

anonymous · Answer

Take the numbers given to you in the problem and figure out what they represent. 

For example, in the formula, I told you that N = initial population. You plugged in 2035, which is not the initial population. It is the final year. 

N = initial population.

anonymous · Answer

so is it 2035=1995*e^(0.03*t)

anonymous · Answer

No, it's not. The N and the P are not the YEARS for the population, they are the variables for the population itself. I'll give you a hint...you will not plug in the years into the equation at all.

anonymous · Answer

p=110milion*e^(0.03*T)

anonymous · Answer

Close. What is t? You can find t using the information given.

anonymous · Answer

p=110milion*e^(0.03*40)

anonymous · Answer

Correct. That's A. For B, you need only change the growth rate in the formula.

anonymous · Answer

p=110milion*e^(0.02*40)

anonymous · Answer

how am i suppose to put 110 million in the calculator 110,000,000 do I just put that

anonymous · Answer

Sure, you can. you could also use 1.1 x 10^8

anonymous · Answer

i put it in the calculator and i get 365212861 for A but it says its wrong

anonymous · Answer

Try 365,212,862

anonymous · Answer

it says its wrong

anonymous · Answer

can you help me with B I cant do A I have no more chances

anonymous · Answer

i put 244809502 for B its wrong

anonymous · Answer

One second

anonymous · Answer

See if you can show me your calculations, so I can see.

anonymous · Answer

attachment

anonymous · Answer

i sent a photo

anonymous · Answer

That should be it. I'm not sure where it's going wrong, but that's the formula and the inputs.

anonymous · Answer

oh well thanks for the help medal for you !