elisestanton elisestanton
  • 25-04-2020
  • Mathematics
contestada

how many solutions does this linear have?
y= 2x+4
x + 2y = 8

Respuesta :

DeanR
DeanR DeanR
  • 25-04-2020

y = 2x + 4

in standard form is

2x - y = -4

Second equation is

x + 2y = 8

Those aren't parallel.

Answer: exactly one solution

Let's solve,

x +2(2x + 4) = 8

5x + 8 = 8

5x = 0

x = 0

y = 2x + 4 = 4

Solution is (0,4)

Answer Link

Otras preguntas

What type of plants are carnations
Which of the following numbers is the sum of 82.545 and 128.580 written with the correct number of significant digits? A. 211.1225 B. 211.125 C. 211.13 D. 211.1
Athletes who consume low ______ diets may be at risk for osteopenia and osteoporosis (deterioration of bone tissue leading to increased bone fragility and risk
I got two wrong one has to switch the, the other one
14x + 28y + 21 what is this factored?
Don't know this need help
Help Please!! First to answer correctly get brainliest!!
Describe the anatomy and physiology of the endocrine, excretory, and nervous systems and explain how these systems interact to maintain homeostasis
What single decimal multiplier would you use to decrease by 2% followed by a 3% decrease?
Mount Everest is the highest mountain on Earth, measuring 8848 meters high. It takes 40 days to climb Mount Everest. Suppose that a climber climbed the same num