shreyadas shreyadas
  • 19-07-2020
  • Mathematics
contestada

10x - 8y = 40
5x - 2y = 40
What is the value of y in the (x, y) solution to the
system of equations shown above?

Respuesta :

DatGuy323
DatGuy323 DatGuy323
  • 19-07-2020

Answer: 10

Step-by-step explanation:

Ver imagen DatGuy323
Answer Link
bekkarmahdi702
bekkarmahdi702 bekkarmahdi702
  • 19-07-2020

Step-by-step explanation:

10x-8y = 40 (1)

5x-2y= 40  (2)

multiply (2) by -2 then add to (1) to get rid of x

-10x+4y+10x-8y = 40+ (-80)

-4y = -40

4y = 40

y= 40/4

y = 10

the answer is 10

Answer Link

Otras preguntas

What Native American group relied on agriculture, lived in hogans, and inhabited the modern Southwest?
I need a paragraph about a specific great wall. grammar, punctuation, and capitalization needs to be good
Which statement illustrates Newton's first law? Select one: a. A stone will not move unless something pushes or pulls it. b. A ball rolling across the floor eve
what purpose does the mihrab have as an architectural element in mosques?
Which of the following is most important for a market economy?A Good government regulationB Responsible action by business leadersC Active competition in the ma
Please help please help
Which of the following is equal to the number of particles in 36 grams of carbon-12? B. 3 moles A. 3:1 molar mass C. 3:1 mole ratio D. 1:3 molar volume
A cheetah can run 224 miles in 3 1/2 hours how many miles per hour can the cheetah run?
[tex]4875 - 4859[/tex]
what purpose does the mihrab have as an architectural element in mosques?