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Old 10-11-2008, 11:05 PM #1
ion rocker
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Math problem in The Happening?

The one where the math teacher says "If i gave you a penny on the first day of a month, 2 on the next, 3 the next, and so on how many would you have at the end of the month?" and he tells the chick she would have like $10 million, wtf how? or did i miss something lol
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Old 10-11-2008, 11:08 PM #2
youknowit547
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It's actually true I think.

I think it's "If I give you 1 penny on the first day, 2 pennies on the second day, 4 pennies the third day, and so on; how much would you have?"

Has to do with exponential multiplication.
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Old 10-11-2008, 11:11 PM #3
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1 + 2 + 4 + 8 + 16 + 32 + 64 + 128 + 256 + 1024 + 2048 etc. 30 times, think about it.
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Old 10-11-2008, 11:14 PM #4
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1 + 2 + 4 + 8 + 16 + 32 + 64 + 128 + 256 + 1024 + 2048 etc. 30 times, think about it.
Damn you, rich bastard!
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Old 10-11-2008, 11:17 PM #5
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ohhh times not adding an extra penny each day gotcha. dumb movie none the less
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Old 10-11-2008, 11:53 PM #6
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Ok i got bored and did the math on some paper lol

550,454,223 pennies
$5,504,542.23

He was wrong, it's only in the 5 millions.
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Old 10-12-2008, 12:11 AM #7
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Quote:
Originally Posted by ion rocker View Post
Ok i got bored and did the math on some paper lol

550,454,223 pennies
$5,504,542.23

He was wrong, it's only in the 5 millions.
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Old 10-12-2008, 12:16 AM #8
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2^30 in your calculator for all you *******es
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Old 10-12-2008, 02:00 AM #9
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2^30 in your calculator for all you *******es
haha
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Old 10-12-2008, 05:35 AM #10
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Quote:
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Has to do with exponential multiplication.
I think it's just called exponential growth

EDIT: yeah
http://en.wikipedia.org/wiki/Exponential_growth
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Old 10-12-2008, 09:41 AM #11
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Quote:
Originally Posted by ion rocker View Post
Ok i got bored and did the math on some paper lol

550,454,223 pennies
$5,504,542.23

He was wrong, it's only in the 5 millions.
first off, did you add all the previous money he would get to the final day

SECOND, were you doing a 28, 30, or 31 day month,
because if you did the math on a 30 day month and came up with $5.5 million
then a 31 day month would be over $10 million. which makes him right and you wrong.
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