music700
music700 music700
  • 02-11-2017
  • Mathematics
contestada

Please help me I really dont get this

Please help me I really dont get this class=

Respuesta :

choixongdong
choixongdong choixongdong
  • 02-11-2017
lets x = KB
2/5 = 3/(x+3)
2(x+3) = 3(5)
2x+6 = 15
2x = 9
  x = 4.5

answer
KB = 4.5 cm
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