size doubles every week; when will half be covered?

helpmerhonda

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Sep 3, 2008
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heres a math equation.. A tropical water lily doubles its size in a week. If it takes 60 weeks for the plant to completely cover a pond, when will half the pond be covered?
 
helpmerhonda said:
A tropical water lily doubles its size in a week. If it takes 60 weeks for the plant to completely cover a pond, when will half the pond be covered?
When the lily covers half of the pond, how many more weeks will it take, doubling every week, to cover the entire pond?

Eliz.
 
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