steph135
steph135 steph135
  • 01-12-2016
  • Mathematics
contestada

I need help. again. I am trying to solve each system of the equations. BTW I am in pre algebra. thank u

I need help again I am trying to solve each system of the equations BTW I am in pre algebra thank u class=

Respuesta :

lizzzagoddess
lizzzagoddess lizzzagoddess
  • 01-12-2016
2y = 27 + 4x 

Is this what you need?
Answer Link
xman7373
xman7373 xman7373
  • 01-12-2016
Same idea here as last time.
You have a y-value, substitute it in the problem.
y=x+12
4x+2y=27
4x+2(x+12)=27
4x+2x+24=27
6x+24=27
-24      -24
6x=3
/6
x=.5

plug back in
y=(.5)+12
y=12.5

final answer:
x=.5,y=12.5
Answer Link

Otras preguntas

у = 3х +8 What is the y-intercept?
Empathy is challenging for many because it doesn’t ____ But It does___
The current price per share of corporate mutual fund is 14.35
5 condition for free and fair election
A draft of a presentation... a. is a way to organize your notes. b. is an early version of your presentation. c. is a general plan for your presentation. d. i
Plz help me out and do this idk how and I need this to pass
Which number represents the mode of the data? a) 100 b) 150 c) 200
The company's net income for the year was $52 and it did not sell or retire any property, plant, and equipment during the year. Cash dividends were $9. The net
The area of a triangle is 80cm² and its base is 8cm. If its height is (6+k) cm, find the value if k. (3marks)​
The energy band gap of GaAs is 1.4eV. calculate the optimum wavelength of light for photovoltaic generation in a GaAs solar cell.