Posted by **Maya** on Tuesday, November 9, 2010 at 12:21pm.

A tropical water lily doubles in size each week. If it takes 60 weeks for the plant to completely cover a pond, when will half the pond be covered?

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**Ms. Sue**, Tuesday, November 9, 2010 at 12:35pm
59 weeks

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**Maya**, Tuesday, November 9, 2010 at 12:43pm
Is it how?

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**Ms. Sue**, Tuesday, November 9, 2010 at 12:46pm
If the water lily covers half the pond on one day, then it doubles its size the next day to completely cover the pond.

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**Maya**, Tuesday, November 9, 2010 at 12:52pm
Thank you!!!

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**Ms. Sue**, Tuesday, November 9, 2010 at 12:55pm
You're welcome.

I see I made an error -- it should be doubles its size the next **week**.

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