cianaivetteromany cianaivetteromany

21-02-2017
Mathematics

contestada

What is the y-coordinate of the solution to the system of equations? 4x + y = 4 3x - 5y = - 43

Respuesta :

texaschic101 texaschic101

21-02-2017

4x + y = 4......multiply by -3
3x - 5y = -43.....multiply by 4
----------------
-12x - 3y = -12 (result of multiplying by -3)
12x - 20y = - 172 (result of multiplying by 4)
---------------add
-23y = - 184
y = -184/-23
y = 8 <====

Answer Link

Otras preguntas

Research indicates that memories retrieved during hypnosis are: a) forgotten again as soon as the person awakens from the hypnotic state. b) accurate recollecti

4sena + 5 = 2 sena + 6

How do you graph a log function by hand?

Find all x-intercepts and y-intercepts of the graph of the function. f(x)=3x³-12x²-15x

The graph shows the distance a skydiver falls over time once she reaches maximum speed. Enter values to complete each statement below based on the graph. A grap

extract examples from Regulations Licensing Manuals and explain how the child care centers implement such a regulations in wisconsin

Question Which statement is true about Dorothy Vaughan? Responses At first, she did not want the responsibility of being section head, but she soon realized tha

Solve the following system of equations for all three variables. 9x+4y+6z= -8 9x+4y+6z= -5 x-8y+8z= -6

1. Methane (CH4) reacts with oxygen to make carbon dioxide and water. Write a balanced symbol equation for this reaction: CH4 + 2O2 → CO2 + 2H₂O Calculate how m

What was Truman's fateful decision?