a long-distance carrier's connection fee for a phone call is $1.25. There id also a charge of $0,10 per minute. How long was a phone call that cost #3.05?

• Total cost = connection fee + time * rate
  3.05 = 1.25 + t*0.10
  t*0.10 = 1.8
  time, t = 1.8/0.10
  = 18 min
  
• 10 years agoHelpfull: Yes(0) No(0)