zoeomcgee2003
zoeomcgee2003 zoeomcgee2003
  • 03-11-2020
  • Mathematics
contestada

Classify the system and identify the number of solutions.
4x + 3y + 6z = 25
x + 5y + 7z = 13
2x + 9y + z = 1

Respuesta :

gavinwhitley gavinwhitley
  • 06-11-2020

Answer: consistent, independent; one

Step-by-step explanation:

Eliminate one variable.

4(x+5y+7z=13)——- 4x+20y+ 28z= 52 (Multiply equation 2 by 4)

Subtract

Write the 2-by2 system.

17y+22z=27

-30y+8z=46

Eliminate y and solve for z

Use one of the equations in the 2-by-2 and solve for y

Answer Link

Otras preguntas

can you explain how to do 7-11 or do them please
When given the information below, can you conclude that Quadrilateral WXYZ is a parallelogram? Why or why not? In Quadrilateral WXYZ, the sides have the followi
why teenagers need more sleep?​
Andrea made a replica of the Empire State Building. The surface area of the model is 45 ft2. What is the surface area of the actual Empire State Building in sq
find the value of the following indice​
Use elimination to solve each system of equations. 1/3x-y=-1 and 1/5x-2/5y=-1
The two alternative forms of a gene are
What’s the sum of the measures of the exterior angles of a 53-gon? A) 6.8 degrees B) 360 degrees C) 173.2 D) 9180 degrees
Express how you know that the sum of any two consecutive triangular numbers is a square number.
what is the area of this shape?​