SOLUTION: if B is the midpoint of A and C. If BC=3x2, and AC=54, find the value of x. Show all work to receive credit

Algebra ->  Geometry-proofs -> SOLUTION: if B is the midpoint of A and C. If BC=3x2, and AC=54, find the value of x. Show all work to receive credit      Log On


   

Question 292927: if B is the midpoint of A and C. If BC=3x2, and AC=54, find the value of x. Show all work to receive credit
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
bc=1/2 ac
3x^2=54/2
3x^2=27
x^2=9
x=3