jacofulk74 jacofulk74
  • 03-10-2020
  • Mathematics
contestada

If KK is the midpoint of \overline{JL}
JL
, JK=8x+11JK=8x+11, and KL=14x-1KL=14x−1, find JL.JL.

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 03-10-2020

Answer:

  JL = 54

Step-by-step explanation:

When K is the midpoint of JL, we have ...

  JK + KL = JL

and

  JK = KL

Using this latter equation, we can substitute the given expressions to get

  (8x+11) = (14x -1)

  12 = 6x . . . . . . . . . add 1-8x to both sides

  2 = x

Using this, we can find JL.

  JK = 8x +11 = 8(2) +11 = 27

  KL = JK = 27

  JL = JL +KL = 27 +27

  JL = 54

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