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HELP with math plzzz

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philipc
Posts: 6651 - Karma: 1,286
your wooden deck has been infested with a colony of 50 carpenter ants. the colony can triple in size every five days. how long before there are 500,000 ants in the colony?


i need to know how much it increases evry day an shit..
Nov 9 2008 9:54PM
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philipc
Posts: 6651 - Karma: 1,286
how retarted r u fuckers
Nov 9 2008 9:58PM
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charmander
Posts: 10636 - Karma: 370
your wooden deck has been infested with a colony of 50 carpenter ants. the colony can triple in size every five days. how long before there are 500,000 ants in the colony?


well start by diciding all your numbers by 5 i think so

10 ants triple every day
in x days you have 100,00 ants

10(3x)=100,000

30x=100,00

5(x=3.3333)



i think, im not sure, i know this isnt really set up well
Nov 9 2008 9:59PM
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philipc
Posts: 6651 - Karma: 1,286
it starts at 50 and at 5 days its at 150  and after 10 days its 450, i need to know how much is goes up by every day there a formula
Nov 9 2008 10:03PM
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Alex=God
Posts: 2422 - Karma: 139
just do it the easy way. Triple 50 then triple the number you get from tripling fifty. Then keep doing that till you get 500000 and count how many times you tripled
Nov 9 2008 10:03PM
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woolymammoth
Posts: 242 - Karma: 13
3333.33 days, or if you round up 3334 days
Nov 9 2008 10:04PM
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Caveman.
Posts: 9067 - Karma: 330
Coming from the guy who cant do his own homework...

On the 6th day there will be 36,450 ants
On the 7th day there will be 109,350 ants

That took like 30 seconds to do.
Nov 9 2008 10:05PM
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Caveman.
Posts: 9067 - Karma: 330
Never mind I closed the window and took down the wrong numbers first..
Nov 9 2008 10:06PM
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cobalt
Posts: 1913 - Karma: 12
It triples every day, so at the end of day 5 you have 50*3 ants, end of day 10 you have 50*3^2 ants, day 15 you  have 50*3^3 ants.

In general, after N days you'll have 50*3^(N/5) ants.

So you need to solve for N in:

500,000 = 50*3^(N/5)
therefore 10,000 = 3^(N/5)
therefore N/5 = log_base3(10,000)
so N/5 = 8.38

therefore N = 41.91 days. you should round this up to 42 days.

Nov 9 2008 10:07PM
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Silence
Posts: 16030 - Karma: 150
^ nice. very nice.
Nov 9 2008 10:08PM
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philipc
Posts: 6651 - Karma: 1,286
word yea i knew it was going to be between 40 and 43, but like i need to know every day so....
Nov 9 2008 10:10PM
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StevenSegal
Posts: 1716 - Karma: 16
your asking us you epic failure of a gay.
Nov 9 2008 10:13PM
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philipc
Posts: 6651 - Karma: 1,286
seriously
Nov 9 2008 10:15PM
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StevenSegal
Posts: 1716 - Karma: 16

but 4 rls... y so srs?

do your  homework bro it's an easy formula

Nov 9 2008 10:19PM
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