Homework Help: 9th grade

Posted by Marie on Wednesday, April 1, 2009 at 10:12am.

A glass jar holds a single germ. After one minute, the germ splits into two germs. One minute after that, the two germs each split again, forming a total of four germs, continuing at this rate, a single germ can multiply to fill the whole jar in exactly one hour. Know this, how long in minutes, would it take to fill the jar if you had started with two germs?

9th grade - SraJMcGin, Wednesday, April 1, 2009 at 10:28am
Well, if one germ can fill the jar in one hour, 2 germs should do it in 1/2 that time, or 30 mins?

Sra
9th grade Math/Logic - PsyDAG, Wednesday, April 1, 2009 at 1:01pm
If it only take one germ a minute to split into two germs, then the two germs have a one minute head start — 59 minutes.

I hope this helps a little more. Thanks for asking.

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