diego55matias
diego55matias diego55matias
  • 12-01-2020
  • Mathematics
contestada

How many solutions does this linear system have?
y = 2x-5
-8x – 4y=-20

Respuesta :

Stefanisaska
Stefanisaska Stefanisaska
  • 13-01-2020

Answer: one solution (5/2,0)

Step-by-step explanation:

y = 2x-5

-8x – 4y=-20

-------------------

-8x-4(2x-5)= -20

-8x-8x+20= -20

-16x=-20-20

-16x=-40

16x=40

x=40/16

x=10/4

x=5/2

y=2*5/2-5

y=5-5

y=0

Answer Link
haj26 haj26
  • 12-11-2021

Answer:

B: one solution: (2.5, 0)

Step-by-step explanation:

I got it right on Edge

Answer Link

Otras preguntas

What is 57,876.48 rounded to the nearest tenth
Plans for a bridge are drawn on a coordinate grid. One girder of the bridge lies on the line y = 3x – 3. A perpendicular brace passes through the point (–7, 9).
equation 5b-12+2b=16
Clara bought 16 boxes of granola bars. There are g granola bars in each box. Write an expression that shows how many granola bars Clara bought. Type an asterisk
Was the first Chinese leadership to spread Confucianism
Stefan finds two open boxes of model magic clay one box contains 5/6 pound of clay. And the other contains 2/3pound of clay.how much clay is this in simplest te
Please tell me how I do this and explain
Which is the best example of a hypothesis leading to new experimental methods?
what is light pollution? and how does it affect astronomers?
A good example of a stress reliever is: A stretching routine A cardio vascular activity Exercising to build muscular strength and endurance All of the abo