contestada

if AC=17 and AB=5x-6, then find the value of x.
line segment AB has a midpoint C.

A)34
B)8
C)23/5
D)20

Respuesta :

soji
C is the midpoint of AB which implies AC=BC. 
AC=BC=17 
AB=AC+BC=17+17=34 

5x-6 = 34 
5x = 34+6 
5x = 40 
x = 40/5 
x = 8 

Answer : B) 8

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