[CAUT] Brain fart on algebra: OT

Jim Moy jim at moypiano.com
Mon Sep 20 18:16:26 MDT 2010


x + y = 26
8x = 5y

Substitute, and find x = 10, y = 16.

But like on the pianotech question, I suspect it's a trick question somehow :-)

Jim

On Mon, Sep 20, 2010 at 5:48 PM, Paul T Williams
<pwilliams4 at unlnotes.unl.edu> wrote:
> Hi all,
>
> Are you as smart as an 8th grader?
>
> I pay my son 8 cents for every problem he gets correctly solved and fine him
> 5 cents for each incorrect solution. At the end of 26 problems, neither owes
> anything to the other. How many problems did the boy solve correctly?
>
> What the algebraic solution here?
> Paul
>


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