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

describethe differences in the ways the sand castle is changed by an ocean wave and by someone stompie on it
Read the excerpt from chapter 2 of Night. And so an hour or two passed. Another scream jolted us. The woman had broken free of her bonds and was shouting louder
I don’t understand how to do this problem.
What is the measure of <1 in the picture below? 3x + 71 1 6x + 2
What is a major function of growth hormone?
____was formed in 1886, won wage increases and shorter work weeks for its members between 1890 and 1915.
How does yasmine greet Mme Brochant
HELP ME PLEASE!!!!!! Beth enlarged the triangle below by a scale of 5. She found the area of the enlarged triangle. Her work is shown below. What was Beth’s err
a car that passes through a 20 meter speed trap in 5 seconds. How far will it go in 100 seconds?
At a sale, dresses were sold for 95% of their original price. If the dresses originally cost $200 each, how much did a dress cost on sale?