emma8642 emma8642

10-09-2020
Mathematics

contestada

If B is the midpoint of AC, and AC = 8x – 20,
find BC.
3x - 1
A
B
C

If B is the midpoint of AC and AC 8x 20 find BC 3x 1 A B C class=

Respuesta :

njrcomps11 njrcomps11

10-09-2020

Answer:

x = 9

Step-by-step explanation:

Since B is the midpoint, that means segment AB has to be the same length as BC.

Therefore:

[tex]2(3x-1)=8x-20[/tex]

[tex]6x-2=8x-20[/tex]

[tex]18=2x[/tex]

[tex]9=x[/tex]

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