SOLUTION: Points R, S, and T are collinear, with point S between points R and T. If RT = 30, and ST = 2x + 4, what is the possible range of values for x?

Algebra ->  Length-and-distance -> SOLUTION: Points R, S, and T are collinear, with point S between points R and T. If RT = 30, and ST = 2x + 4, what is the possible range of values for x?      Log On


   



Question 77953: Points R, S, and T are collinear, with point S between points R and T. If RT = 30, and ST = 2x + 4, what is the possible range of values for x?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
if RT=30 and S lies between R and T then ST must be greater than 0 and less than 30...given ST=2x+4 then... 0 < 2x+4 < 30

subtracting 4 gives... -4 < 2x < 26 ...dividing by 2 gives... -2 < x < 13