Ask your own question, for FREE!
Mathematics 7 Online
OpenStudy (anonymous):

Solve: A city has a population of 100, 000. If the population increases 10 percent every 5 years, what will be the population be at the end of 40 years?

OpenStudy (anonymous):

since 1 year = 2% you can multiply 40 times 2 to get 80%....then mult that to 100,000 to get 80,000...then add that to 100,000 to get 180,000 sorry if my terminology is offf but i believe the answer i got is correct

OpenStudy (anonymous):

i don't understand. :(

OpenStudy (anonymous):

hello.. who can help me with this? :(

OpenStudy (anonymous):

did you get the answer right?

OpenStudy (anonymous):

its hard for me to explain....its kinda related to finding simple interest

OpenStudy (anonymous):

no.. i didn't get it..

OpenStudy (anonymous):

how did you get 2% of 1 year?

OpenStudy (anonymous):

think of it like this 10/5 is equal to what simplified fraction?

OpenStudy (anonymous):

ah.. got it. then?

OpenStudy (anonymous):

40 years times .02 = ?

OpenStudy (anonymous):

no im sorry it is 100,000 times .02

OpenStudy (anonymous):

2000 .. :) then?

OpenStudy (anonymous):

yes now mult that times 40 years

OpenStudy (anonymous):

ah.. so, 80000 is the answer?

OpenStudy (anonymous):

nooo....because you have to add that to ur original population

OpenStudy (anonymous):

ah. . so, 180000 is the final answer?

OpenStudy (anonymous):

thats what i got

OpenStudy (anonymous):

ah.. thanks :)

OpenStudy (anonymous):

ur welcome

OpenStudy (anonymous):

please help me with this: http://openstudy.com/updates/52456b4be4b0838bd449d03f

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!