Subject:
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Re: See what you find when you go snooping around...
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Wed, 3 Sep 2003 20:03:49 GMT
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Viewed:
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552 times
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In lugnet.org.ca.rtltoronto, David Koudys wrote:
> In lugnet.org.ca.rtltoronto, David Koudys wrote:
>
> fer example, the last one i did--
>
> Dan (always seems to be) twice as old as Mike
>
> Mike was 5 years younger than Ben
>
> Ben was 10 years younger than Dan
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> Solve for Ben (as the clue)
>
> Ben = Dan - 10
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> Dan = Mike x 2
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> Mike = Ben - 5
>
>
> So...
>
> Ben = Dan - 10
> Well, what does Dan =?--substitute...
>
> Ben = (Mike x 2) - 10
> Well, what does Mike =?--substitute
>
> Ben = ((Ben - 5) x 2) -10
I think from here it goes:
Ben = (2(Ben) - 10) -10 (dave had an addition sign...)
Ben/2(Ben) = 20
1/2 Ben = 20
Ben = 40 .... ? (20 / 1/2)
.... DOH!
Jeff VW
> Ben = (2Ben + 10) -10
>
> Then I ferget my basic algebra...
>
> Grr!!!
>
> Looking at it, the answer was 20 but I have no idea how to get there for high
> school algebra was eons ago...
>
> Dave K
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