smokeybear450 smokeybear450
  • 22-06-2016
  • Mathematics
contestada

use the following system, use the second equation to make a substitution for x in the first equation
x+5y-10=0
x=2y-8

Respuesta :

meerkat18
meerkat18 meerkat18
  • 30-06-2016
x in the first equation is given to be equal to 2y - 8. Substituting  this expression for x to the first equation, (2y - 8) +5y - 10 = 0. Solving this gives  y = 2.57. Substituting this value to to any of the equation to get the value of x. Choosing the second equation, 
                                 x = 2 x 2.57 - 8 = -2.86

Thus, the ordered pair for this system is (-2.86, 2.57) 
Answer Link

Otras preguntas

What were the causes of the cold war?
Why are Europe's clean energy sources important to the region?
Geometry  The diagonals of a  kite are in the ratio of 3:2. The area of the kite is 27 cm^2 .  Find the length of both diagonals. (Hint: Let the lengths of the
Multiplying a number by 2 and then adding 5 gives the same number as subtracting a number from 23. What is the number?
Geometry  The diagonals of a  kite are in the ratio of 3:2. The area of the kite is 27 cm^2 .  Find the length of both diagonals. (Hint: Let the lengths of the
without multiplying determine which expression has a product greater than 52,678A) 5/6 x 52,678B) 9/9 x 52,678C) 4/3 x 52,678D) 3/5 x 52,678How can I tell just
What does karyote mean?
What does karyote mean?
what word best describe chlorophyll
A small child has a wagon with a mass of 10 kilograms. The child pulls on the wagon with a force of 2 newtons. What is the acceleration of the wagon?