ortegamario3002
ortegamario3002 ortegamario3002
  • 06-03-2021
  • Mathematics
contestada

If x + y = 13 and xy = 40, then x and y = *

Respuesta :

jesusm1
jesusm1 jesusm1
  • 06-03-2021

Answer:

  • rearrange: y=13-x
  • xy=40 --> x(13-x)=40
  • 13x-x^2=40
  • x=8 and y= 5
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