CHOULI - please see if you can help me??

iVillage Member
Registered: 04-13-2010
CHOULI - please see if you can help me??
9
Thu, 02-03-2011 - 1:02pm

I know you're a biology teacher, hopefully you can help me :) if not, that's ok, it's worth a shot!

ok, the question on a practice test is...

If a culture medium is inoculated with one cell that has a generation time of 20 minutes, how many cells would be in the culture after five hours?


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iVillage Member
Registered: 07-28-2009
Thu, 02-03-2011 - 1:08pm
An excel spreadsheet could have that all mutliplied out in a second! If there isn't an easier way I mean.
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iVillage Member
Registered: 04-13-2010
Thu, 02-03-2011 - 1:32pm
yeah michelle, too bad I can't take a computer into the testing center with me - you're only allowed to take what your instructor lists, and mine lists a pencil and an answer sheet! I'm gonna have 2 x 2 x 2 x 2 x... listed all down the side of my answer sheet lol


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iVillage Member
Registered: 07-28-2009
Thu, 02-03-2011 - 2:14pm
Ohhh I dunno why I didn't think of that. I guess I imagined you testing at home but that would be dumb LOL
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iVillage Member
Registered: 04-13-2010
Thu, 02-03-2011 - 4:48pm
well here's the thing. Our exams are 100 multiple choice questions. We have 2 choices to take it. Number one - in the testing center during normal operating hours, with no time limit except that you have to be finished by the time they close. and Number two - take the test online, however there is a 1 hour time limit, and if you become disconnected, your test is AUTOMATICALLY over - no if's and's or but's. And since my internet connection is tethered from my cell phone, and I get disconnected anytime someone calls me, well, there ain't no way I'm chancing that! my luck, I'd get one question done and get disconnected ;)


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iVillage Member
Registered: 08-07-2007
Thu, 02-03-2011 - 4:52pm
Can you use a calculator?? Sounds like you know what to do with the formula (and you're right, btw). On a scientific calculator, you'd use the key that has a y with a little x next to it. You enter 2, push the exponential key and then 15, and =.
Chouli, 34; DH 45 Lilypie Pregnancy tickers
iVillage Member
Registered: 04-13-2010
Fri, 02-04-2011 - 6:06pm
I wish! Guess I'll just have to do it all out.


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iVillage Member
Registered: 07-02-2005
Fri, 02-04-2011 - 8:27pm

I have to write everything out.


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iVillage Member
Registered: 04-13-2010
Fri, 02-04-2011 - 9:40pm
yeah, that's what I did to get the answer too! I was HOPING there was an easier way, guess without a calculator, I'm SOL.

oh well, nothing has ever been easy for me, why would I expect this to be...


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iVillage Member
Registered: 06-27-2006
Fri, 02-04-2011 - 10:14pm
Good luck! You seem to be much more "mathy" than I am! :)
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