Katelynnjones48
Katelynnjones48 Katelynnjones48
  • 27-04-2014
  • Mathematics
contestada

At what point (x,y) do the two lines with equations x-2y=5 and 3x-5y=8 intersect?

Respuesta :

Lilith
Lilith Lilith
  • 27-04-2014
[tex]\begin{cases} x-2y=5 \ \ /*(-3)\\ 3x-5y=8 \end{cases}\\ \\\begin{cases} -3x+6y=-15 \\ 3x-5y=8 \end{cases}\\ + \ -------\\ y=-7\\ \\x-2y=5 \\ \\x-2*(-7)=5 \\ \\x+14=5 \ \ |-14\\ \\x=5-14 \\ \\x=-9 \\ \\ \begin{cases}x=-9 \\ y=-7 \end{cases} \\ \\ \\Answer: \ \ this \ is \ the \ point : \ \ (-9,-7) [/tex]
Answer Link

Otras preguntas

F(x) = 4x^2+5x-12 evaluate f(-3)
Fabio and Carlos play on a basketball team together. In the last game, Fabio had 7 77 points less than 2 22 times as many points as Carlos. Fabio scored 3 1
can someone please help I don’t know what points to use ??
Help plz................................
sam said that 3/2 * 1/ 4 equals 3/8. draw a model and use words to explain why sam's awnser is not reasonable
When celeste was unable to obtain her regular supply of heroin, she began to develop physical pain and an intense craving for the drug. celeste was experiencing
Help?? Explain how energy is transferred in a food web.
How were European able to access Ancient Greek texts again? Explain?
what is the electron configuration of potassium
Explain what a fused sentence is and four techniques that may be used to correct the error. Need answer ASAP