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.
Delete
Share
This Question is Closed
skullpatrol
Best Response
You've already chosen the best response.
1
Any ideas?
Faman39
Best Response
You've already chosen the best response.
0
Seriously not at all :(
skullpatrol
Best Response
You've already chosen the best response.
1
Do you know what the word "double" means?
Faman39
Best Response
You've already chosen the best response.
0
It could be 10 times 10, isnt it?
skullpatrol
Best Response
You've already chosen the best response.
1
No, it means " 2 times "
Faman39
Best Response
You've already chosen the best response.
0
i thought, i will have to make 10 exponent 10 ? so it is not 7 * 10 ^10
skullpatrol
Best Response
You've already chosen the best response.
1
No.
Faman39
Best Response
You've already chosen the best response.
0
So
Faman39
Best Response
You've already chosen the best response.
0
what is it and how?
skullpatrol
Best Response
You've already chosen the best response.
1
"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
Best Response
You've already chosen the best response.
0
200
Faman39
Best Response
You've already chosen the best response.
0
?
skullpatrol
Best Response
You've already chosen the best response.
1
Not 2 times 100 years, but 2 times the population.
skullpatrol
Best Response
You've already chosen the best response.
1
|dw:1358429505360:dw|
Faman39
Best Response
You've already chosen the best response.
0
I got 140 after multiply
skullpatrol
Best Response
You've already chosen the best response.
1
How did you get 140? Is that your complete answer?
Faman39
Best Response
You've already chosen the best response.
0
it is not my final answer
Faman39
Best Response
You've already chosen the best response.
0
i have to write this in scientific notation
Faman39
Best Response
You've already chosen the best response.
0
right?
skullpatrol
Best Response
You've already chosen the best response.
1
That is what the question asks: " Write your answer in scientific notation." right?
Faman39
Best Response
You've already chosen the best response.
0
1.4 * 10 ^10, isnt it?
Faman39
Best Response
You've already chosen the best response.
0
No
Faman39
Best Response
You've already chosen the best response.
0
tell me if i did something wrong with it
skullpatrol
Best Response
You've already chosen the best response.
1
You are correct.
Faman39
Best Response
You've already chosen the best response.
0
Thank you so much, it is just because of you. Thanks alot @skullpatrol ! :)
skullpatrol
Best Response
You've already chosen the best response.
1
np