Faman39
  • Faman39
The world population in the year 2011 was approximately 7 x 10^9 people. If the population doubles in 100 years, how many people will be on the earth in the year 2111? Write your answer in scientific notation.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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skullpatrol
  • skullpatrol
Any ideas?
Faman39
  • Faman39
Seriously not at all :(
skullpatrol
  • skullpatrol
Do you know what the word "double" means?

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More answers

Faman39
  • Faman39
It could be 10 times 10, isnt it?
skullpatrol
  • skullpatrol
No, it means " 2 times "
Faman39
  • Faman39
i thought, i will have to make 10 exponent 10 ? so it is not 7 * 10 ^10
skullpatrol
  • skullpatrol
No.
Faman39
  • Faman39
So
Faman39
  • Faman39
what is it and how?
skullpatrol
  • skullpatrol
"If the population doubles in 100 years," means whatever the population is now; it will be 2 times that in 100 years from now.
Faman39
  • Faman39
200
Faman39
  • Faman39
?
skullpatrol
  • skullpatrol
Not 2 times 100 years, but 2 times the population.
skullpatrol
  • skullpatrol
|dw:1358429505360:dw|
Faman39
  • Faman39
I got 140 after multiply
skullpatrol
  • skullpatrol
How did you get 140? Is that your complete answer?
Faman39
  • Faman39
it is not my final answer
Faman39
  • Faman39
i have to write this in scientific notation
Faman39
  • Faman39
right?
skullpatrol
  • skullpatrol
That is what the question asks: " Write your answer in scientific notation." right?
Faman39
  • Faman39
1.4 * 10 ^10, isnt it?
Faman39
  • Faman39
No
Faman39
  • Faman39
tell me if i did something wrong with it
skullpatrol
  • skullpatrol
You are correct.
Faman39
  • Faman39
Thank you so much, it is just because of you. Thanks alot @skullpatrol ! :)
skullpatrol
  • skullpatrol
np

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