anonymous
  • anonymous
I am unable to solve the two simultaneous equations: 0.991=0.0266x+0.0835y, 0.325=0.0499x+0.0077y. Could you help?
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
Use the fisrt equation to find y=f(x) on replace the y's expression found in the second equation to compute x and you'll find y (I have x=0.523...)
anonymous
  • anonymous
if i were doing it i would clear the decimals and write \[266x+835y=9110\] \[499x+77y=3250\]
anonymous
  • anonymous
then i would go slap the math teacher for giving me such annoying numbers to work with. then i would use some computer algebra system to solve

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anonymous
  • anonymous
Ha ha...:-)
anonymous
  • anonymous
well not that hard when you ask the machine. i got \[x=\frac{ 1950680}{396183} \]
anonymous
  • anonymous
how much arithmetic do you wan to do for a problem like this?
anonymous
  • anonymous
The thought police will be after u for suggesting an assault on apoor math teacher...
anonymous
  • anonymous
ok a mild slap with a kleenex. but really, who would even want to know such a thing. if this problem arose naturally from some actual data, then fine. get out the software and find your answer.
anonymous
  • anonymous
Either u or olive is a bit out...
anonymous
  • anonymous
i used a machine. i have no stake in this game
anonymous
  • anonymous
I guess olive used her machine wrong, I'm not going to check it though.
anonymous
  • anonymous
She got the principle right, that's the main thing...
anonymous
  • anonymous
Thanks for your help. By the way, this is chemistry...determining unknown concentrations.
anonymous
  • anonymous
That's a reasonable excuse, no need to slap the chem teacher, then:-)

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