NixonA
NixonA NixonA
  • 14-12-2020
  • Mathematics
contestada

Solve the following system of equations:
y = 5/4x - 2
y = -1/4x + 19

x = ? and y = ?

Respuesta :

alexaaguayo101
alexaaguayo101 alexaaguayo101
  • 14-12-2020

Answer:

1. y= 5 /4 x −2

2.x=−4y+76

Answer Link
Аноним Аноним
  • 14-12-2020

Answer:

We will use substitution to solve this system for x.

[tex]y = \frac{5}{4}x - 2\\y = -\frac{1}{4}x + 19\\\\\frac{5}{4}x - 2 = -\frac{1}{4}x + 19\\\\\frac{3}{2}x - 2 = 19\\\\\frac{3}{2}x = 21\\\\x = 14[/tex]

Now, we will solve for y by pluging in what we got for x into one of the equations.

[tex]y = \frac{5}{4}(14) - 2\\\\y = \frac{35}{2} - 2\\\\y = \frac{31}{2} = 15.5[/tex]

The solution is (14, 15.5).

Answer Link

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