Jyradates1992 Jyradates1992
  • 21-08-2021
  • Mathematics
contestada

For the following system of equations, determine how many solutions there are. y = 5(x − 4) and 4x + 12 = −y

Respuesta :

Аноним Аноним
  • 21-08-2021

Answer:

It has two solutions

Step-by-step explanation:

[tex]y = 5(x - 4)[/tex]

substitute for y in second equation:

[tex]4x + 12 = - y \\ 4x + 12 = - \{5(x - 4) \} \\ 4x + 12 = - 5x + 20 \\ 9x = 8 \\ x = \frac{8}{9} [/tex]

then for y:

[tex]y = 5(x - 4) \\ y = 5( \frac{8}{9} - 4) \\ \\ y = 5( - \frac{28}{9} ) \\ \\ y = - \frac{140}{9} [/tex]

Answer Link

Otras preguntas

For the following question, find the length of the missing side leave. Your answer in simplest radical form. Please help I’m so confused on this lesson!
pls help Henry, a United States citizen, is temporarily living in Anchuria—a single-resource economy whose primary export is bananas. What kind of work would he
I need help with number 9
Identify an equation in point-slope form for the line perpendicular to y=1/4x-7 that passes through (-2,-6)
Which answer is true
tell whether the following is a complete sentence or a sentence fragment the millions of stars​
HELP!!!!!A marble rolls 60ft at a speed of 12 fps. how much time did it take?
What is 1/2x=18 can you please show steps. Thank you
Explain how to use multiplication to find 4÷1/5=
Which events touched on American sympathy for revolutionary movements?