Post a New Question

Geometry

posted by .

B is the midpoint of Symbol for segment A C. .
AB=5x+2
AC=12x-2
What is the value of BC? Show your work for credit.
Line segment A C with point B on it.

  • Geometry -

    Did you make a sketch?
    On my diagram
    length(BC) = length(AC) - length(AB)
    = 12x-2 - (5x+2)
    = 7x-4

    but B is the mipoint, so AB = BC
    7x-4 = 5x+2
    2x = 6
    x = 3

    then BC = 7(3)-4 = 17



    check:
    AB = 17
    AC = 12(3)-2 = 34
    BC = 17 , YUP!!

Answer This Question

First Name
School Subject
Your Answer

Related Questions

More Related Questions

Post a New Question