chocolatemilk94
chocolatemilk94 chocolatemilk94
  • 01-11-2019
  • Mathematics
contestada

*Urgent*


Use a matrix to find the solution to the system of equations.

X-5y = -5
-4x-2y = 20

A. (-5,-5)
B. (-5,0)
C. (0,5)
D. (-5,5)

Urgent Use a matrix to find the solution to the system of equations X5y 5 4x2y 20 A 55 B 50 C 05 D 55 class=

Respuesta :

clemenskk clemenskk
  • 01-11-2019

Answer:

B. (-5,0)

Step-by-step explanation:

-2(X-5Y=-5)            -5(-4X-2Y=20)

-2X-10Y=10    -subtract-     20X-10Y=-100  = -22X=110

                                                                     _________

                                                                           -22X

                                   X=-5

Now substitute x with -5 to find Y which makes y=0

Answer Link

Otras preguntas

Evaluate 4x^3 + 2 for x
How does the house have exhibit the seven characteristics of life
ATP is converted into ADP when energy is needed by an organism. If water were not available in the mitochondria, what would most likely happen?
What are the possible solutions to 33⋅3333⋅33, if 11⋅11=411⋅11=4 and 22⋅22=1622⋅22=16?
The point-slope form of the equation of the line with slope 4 passing through the point (1, 2) is
Social psychologists define the need to belong as the desire to
Conjunctions do not... a. join sentences together. b. join pronouns and antecedents. c. join clauses. d. join items in a list.
-8)(56)=1 What is the missing value that makes the equation true?
What number must you add to complete the square? x^2 + 14x = -7 49?
What did noble women contribute to medieval warrior society