behappy0217
behappy0217 behappy0217
  • 22-10-2017
  • Mathematics
contestada

HELP PLEASE
Solve the system by substitution
-4.5x - 2y = -12.5
3.25x - y = -0.75

Respuesta :

daijingyi722
daijingyi722 daijingyi722
  • 22-10-2017
from the second equation ,we can know that y=3.25x+0.75
plug it into the first equation
-4.5x-2(3.25x+0.75)=-12.5
-4.5x-6.5x-1.5=-12.5
-11x=-11
x=1
plug it back into the second equation, y=3.25x+0.75=4
the answer would be (1,4)
Answer Link
krissy24 krissy24
  • 22-10-2017
You can also go on mathwey it would solve it fast
Answer Link

Otras preguntas

when did Dehli sultanate start
What was President Jackson's plan for dealing with Native Americans?
To be elected president, a citizen must have which of the following characteristics? A.) The citizen is at least 35 years old. B.) The citizen is a former congr
1.What do taxonomists study? How does this benefit other disciplines of biology?
The following observations are given for two variables. x y 2 7 6 10 9 13 11 18 11 21 12 25 7 12 4 7 ​ a. Compute the sample covariance for the above data (roun
What type of force changes an object's motion?
5. Which European Explorer found a way to sail around the tip of Africa near the Cape of Good Hope?
1- Oil Spill Pollution Problem Statement (it is written in the form of a question) 2- Form a Hypothesis(an educated guess of what you think will happen)
Which is a main idea in the ninth amendment? Privacy rights must be respected
Item 7 Which sentence is correct? Be Glad Your Nose Is on Your Face is a funny poem that describes what it would be like if the nose were located on a different