khemphill8590 khemphill8590
  • 12-12-2018
  • Mathematics
contestada

An Electrician charges $30 for a service call plus $75 per hour of service. If he charged 210 how many hours did he work?

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Cathi Cathi
  • 12-12-2018
30 + 75x= 210
Subtract 30 from both sides
75x=180
Divide both sides by 75
X =2.4

Worked 2.4 hours
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