irick39
irick39 irick39
  • 13-08-2019
  • Mathematics
contestada

How many solutions does this linear system have?

y = 2x – 5

–8x – 4y = –20

Respuesta :

Аноним Аноним
  • 13-08-2019

Answer:

2 solutions.

Step-by-step explanation:

Rearrange the second equation:

-8x - 4y = -20

-4y = 8x - 20

Divide through by -4:

y = -2x + 5

and our first equation is

y =  2x - 5

Subtracting the 2 equations

0 = -2x -2x + 5 -(-5)

0 = -4x + 10

x = 5/2

and y = 2(5/2) - 5 =  0.

2 solutions.

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

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