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

b squared minus 4b plus 4 equals 0
Why is air warmer at the top of the stratosphere than at the top of the troposphere? Thank you!!!
Help! I say it is B but want to be sure.
a number k is increased by 7 is 34.
Help! I say it is B but want to be sure.
how do you increase 56km by 2.5%
A production growth from $43 billion to $83 billion would be considered which of the following? A. Increase in gross national product B. Decrease in gross natio
. Which additional word or words in the sentence should be capitalized? When David registered for college, he signed up for physics 300 and art history 200. Cho
The diameter of this compact disc is 11.8cm. The hole in the middle has a area of 1.54cm2. What is the area of the plastic in this disc?
Which verse teaches that God is pre-existent? Genesis 1:1 Genesis 2:1 John 2:1 Revelation 1:1