Respuesta :

linandrew41

Since these two triangles are similar, that means all their side lengths are proportional:

  [tex]\frac{SR}{ST} =\frac{CB}{CD} \\\frac{11x-4}{70} =\frac{60}{50} \\550x-200=4200\\550x = 4400\\x = 8\\[/tex]

Hope that helped!