asafmartinez103
asafmartinez103 asafmartinez103
  • 22-08-2017
  • Mathematics
contestada

How many solutions does this linear system have

y = 2x - 5

-8x - 4y = -20

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

Respuesta :

musiclover10045
musiclover10045 musiclover10045
  • 22-08-2017

replace the 1st equation into the 2nd one for y

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

-8x-8x+20 =-20

-16x+20 = -40

-16x=-40

x = 5/2 = 2.5

y = 2x-5 - 2(2.5) - 5 = 5-5 = 0

one solution (2.5,0)


Answer Link
lusungmike lusungmike
  • 13-07-2020

Answer:

b

Step-by-step explanation:

Answer Link

Otras preguntas

using the questions of classical invention can help you
Read the excerpt below and answer the question. The syllables of the word Araby were called to me through the silence in which my soul luxuriated and cast an Ea
Complete the word equation for making a salt. _________ + __________ → salt
Complete the word equation for making a salt. _________ + __________ → salt
Although alex's biological mother used crack cocaine during her pregnancy, alex was adopted at birth into a loving home with parents who did the best that they
A leech that attaches itself to a swimmer is an example of
Which of the following represents the damaging effects of deforestation? A. Less carbon dioxide and some rainfall B. More oxygen and frequent rainfall
Myths often function as a connection to______,or the customs and beliefs of a group
In ________ thinking, decisions are made based on situations and circumstances, and logic is integrated with emotion as adults develop principles that depend on
Which force of weathering is the main cause of a landslide?