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

Japanese industrialization thrived because of its rich supply of raw materials
Darwin s work on the theory of evolution occurred at about the same time that Harvey noticed the continuous circulation of the blood. Linnaeus developed binomia
convert rads/s to revs/s
People with schizophrenia have at least two distinct personalities. True or false?
How do you make slime
A star's apparent magnitude is most closely related to which of the following? Select all that apply. a. radius. b. luminosity. c. distance from Earth. d. a
Is the period of transition between childhood and adulthood.
The scientific study of mental, emotional, and behavioral disorders is known as _________. a. biopsychology b. sociology c. psychopathology d. anthropology
All insurance is based on a principle called A. division of risk. B. investment premiums. C. cash value coverage. D. premium earnings.
What are plate tectonics?