LaceyBunnyHop
LaceyBunnyHop LaceyBunnyHop
  • 04-02-2017
  • Mathematics
contestada

2. Solve the following system of equations using substitution.
2x+2y=38
Y=x+3

A.(8,11)
B.(4,7)
C.(35/4, 47/4)
D.(-4,-7)

Respuesta :

pinkmermaid pinkmermaid
  • 04-02-2017
First, make sure you convert both equations into standard form. Your two equations would be 2x+2y=38 and -x+y=3. Then multiply the bottom by 2. So your new equations would be 2x+2y=38 and -2x+2y=6. The x would cancel out and you would continue solving for y. y would equal 11 and then you would plug it back into an original equation. When you plug and solve for x, you would get x=8. So your answer would be (8,11)
Answer Link

Otras preguntas

what do I need to multiply
what is 9.39 to one decimal place
Why did conservatives oppose the New Deal? They thought Roosevelt was not doing enough to provide relief. They believed it gave the government too much power in
Miguel used 6 cubes to make this 3-step staircase. If he uses a total of 45 cubes to make a similar staircase, how many steps will the staircase have?
Being prepared to play is an important step in staying safe when participating in a game. True false
The amendments that were violated in Miranda vs Arizona case
German prisoners of war were brought in to work in Minnesota’s lumber industry. True False
Which of the following questions describes the equation m - 4 = 7? a.What number, when subtracted from four, results in seven? b.What number, when four is subt
A politician who is "fiscally liberal" would MOST LIKELY support
Diabetes mellitus is a disease that occurs when which organ does not regulate the amount of glucose in the blood?