SOLUTION: the human brain has 10 million nerve cells and the average cell has 200 billion molecules. What is the number of molecules in a nerve cell? 10cells = 200 billion molecules ?m=1

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Question 117450: the human brain has 10 million nerve cells and the average cell has 200 billion molecules. What is the number of molecules in a nerve cell?
10cells = 200 billion molecules
?m=10 (200m)
? = 2000 billion
Thanks for your help!

Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
10 million nerve cells

average cell has 200 billion molecules


%2810+million%29%28200+billion%29

in Scientific Notation this will be:
since 1+million+=+10%5E6 and 1+billion+=+10%5E9, we will have:

10+%2810%5E6%29%28200%29%2810%5E9%29+

10+%2810%5E6%29%282%29%2810%5E2%29%2810%5E9%29+

%2810%5E7%29%282%29%2810%5E11%29+

2%2A10%5E18+