1rakf 1rakf
  • 03-03-2017
  • Mathematics
contestada

Given the system of equations:

6x+y=9.7
4x+2y=9.8
What is the value of x?

Respuesta :

sara153 sara153
  • 03-03-2017
I used the substitution method.
The first equation is what I used: y=-6x+9.7
So I plugged in y in the second equation.
4x + 2(-6x+9.7)= 9.8
4x-12x+19.4=9.8
Combine like terms
-8x+19.4=9.8
Subtract 19.4 on both sides
-8x=-9.6
Divide by -8 on both sides and you get
x=1.2
If you wanted to find y use either equation and plug in for x with the value of x!
Answer Link

Otras preguntas

6. Describe the functions of the Infrastructure Tracking Unit, the Processing Unit, and the Visual Unit with clear flow charts? 7. List down and explain common
what is structure of the atom and charge of relative mass
if 3/4 of a man income is 3000, what will be the man 1/4 of his income​
if I had enough money I would fly (begin with had)​
I need help please !!!
Why sugar is an organic compound
what is the capital city of japan?​
II.Setting up of an equation for each of the following. 1. Dimple's age is Twices of twinkle's age. Double the sum of their ages is 6. 2. The sum of three conse
A force of 20N moves a body with an acceleration of 2 ms^-2 . what is its mass
find the area of the square rug if its side is (5x 1) feet