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OpenStudy (anonymous):
The rate of decay of a radioactive substance is proportional to the amunt of substance present. Four years ago, there 12 grams of substance. Now there ae 8 grams. How many will there be 8 years from now?
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OpenStudy (anonymous):
@zepdrix i think you explained this to me already, but could you please do soagain? i adm still not clear on how to do it.. (
zepdrix (zepdrix):
Hmm I don't remember these :3 gimme a sec to work through it.
zepdrix (zepdrix):
|dw:1358381396966:dw|
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