step723 step723
  • 08-10-2021
  • Mathematics
contestada

Solve the system by substitution. 2 . 5 x − 3 y = − 13, 3 . 25 x − y = − 14

Respuesta :

josiahc92
josiahc92 josiahc92
  • 08-10-2021

Answer:

What is the volume of a sphere with a radius of 24 units? A. 92167 units O B, 230477 unite 3 O c. 18A324 units D. 13,8247 units

Step-by-step explanation:

Answer Link
darkness880826
darkness880826 darkness880826
  • 08-10-2021

Answer:

(x, y) = (-3 5/8, 1 5/16)

Step-by-step explanation:

Add y+14 to the second equation to get ...

  3.5x +14 = y

Substitute this for y in the first equation:

2.5x -3(3.5x +14) = -13  

2.5x -10.5x -42 = -13

  -8x = 29

  x = -29/8 = -3 5/8

Using this in the formula for y, we get ...

 3.5(-29/8) +14 = y

 -203/16 +14 = y = 21/16 = 1 5/16

Answer Link

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