razzyjazzyrose
razzyjazzyrose razzyjazzyrose
  • 15-02-2017
  • Mathematics
contestada

Find the value of the expression 2x−12)+(1/2xy−10) for x=8 and y=2

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theKingsdaughter
theKingsdaughter theKingsdaughter
  • 15-02-2017
[tex](2(8)-12)+( \frac{1}{2}(8)(2)-10)[/tex]

You can use PEMDAS to solve from there.  

[tex](16-12)+( \frac{1}{2}(16)-10) 4+(-2) [/tex]

What does 4 plus negative 2 equal?...

[tex]4+(-2)=2[/tex]

The answer is 2 :)
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