laylayboo28
laylayboo28 laylayboo28
  • 16-07-2021
  • Mathematics
contestada

which ordered pair is the best estimate for the solution to the system?​

which ordered pair is the best estimate for the solution to the system class=

Respuesta :

adioabiola
adioabiola adioabiola
  • 21-07-2021

Answer:

See explanation

Step-by-step explanation:

13x + 6y = - 30 (1)

x - 2y = -4 (2)

Multiply (2) by 3

3x - 6y = -12 (3)

13x + 6y = - 30 (1)

Add (3) and (1) to eliminate y

3x + 13x = -12 - (-30)

16x = -12 + 30

16x = 18

x = 18/16

x = 1.125

Substitute x = 1.125 into (2)

x - 2y = -4 (2)

1.125 - 2y = -4

-2y = -4 - 1.125

-2y = -5.125

y = -5.125/-2

y = 2.5625

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