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

two identical freight cars roll without friction towards each other on a level track. one car rolls 2 m/s the other 1 m/s. after the cars collide they couple an

When was William Shakespeare born

You have a cylinder with a diameter of 15 inches and a height of 12 inches. What is the volume of the largest sphere thg will fit inside it? If you can will you

A 1 digit number and a 3 digit number have a sum of 205. The same two number have a difference of 195, a product of 1,000 and a quotient of 40. What are the t

A pound of seedless red grapes costs $2.75. Drew must spend less than $9.35 on a bunch of seedless red grapes.Inequality:Solution:Interpretation:

two identical freight cars roll without friction towards each other on a level track. one car rolls 2 m/s the other 1 m/s. after the cars collide they couple an

What are two different ways to describe and label the layers of the Earth?

is it possible for a distance versus-time graph to be a vertical line?

is it possible for a distance versus-time graph to be a vertical line?

If the speed of an object is tripled, its kinetic energy will be