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Mathematics 21 Online
OpenStudy (anonymous):

Please HELP ME: In 1990, the rate of change of the world population was approximately 0.09125 billion per year (or approximately 1 million people every four days). The world population was estimated to be 5.3 billion in 1990. According to the model, when will the population of the world be double the 1990 population? a. The population will double in approximately 270 years time, by 2260. b. The population will double in approximately 17 years time, by 2007. c. The population will double in approximately 58 years time, by 2048. d. The population will double in approximately 116

OpenStudy (anonymous):

PLEASE HELP ME..

OpenStudy (anonymous):

@goformit100

OpenStudy (goformit100):

it will be easy to solve these type of question if you tabulate the data, or you can workout with the conditions given. Hey, are you able to Tabulate it ?

OpenStudy (anonymous):

what is tabulate

OpenStudy (goformit100):

tabulate means here that if you can make a table as per the given data you can further lead to an easy process of solving it. Are you able to do that ?

OpenStudy (goformit100):

If you are able then its ok, or else I will guide you further.

OpenStudy (anonymous):

I really dnt know how too.

OpenStudy (goformit100):

Ok let me explain how to proceed.

OpenStudy (goformit100):

the question is : In 1990, the rate of change of the world population was approximately 0.09125 billion per year (or approximately 1 million people every four days). The world population was estimated to be 5.3 billion in 1990. from the given data what are you getting as the current data of 1990

OpenStudy (anonymous):

I dont know how to set it u or I would have did it

OpenStudy (goformit100):

in 1990 ::: approximately 0.09125 billion per year (or approximately 1 million people every four days)

OpenStudy (anonymous):

okayy

OpenStudy (goformit100):

so the time for doubling the population can be found out by Unitary Method

OpenStudy (anonymous):

idk what unitary method

OpenStudy (goformit100):

0.09125 multiplied by 2 leads to the doubled population. Now, try to use and do as follows

OpenStudy (anonymous):

0.1825

OpenStudy (goformit100):

ya correct

OpenStudy (anonymous):

okay so Now what do I do?

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