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An plumber charges $50 for a service call, plus $85 per hour of service. If he charged $390, how many hours did he work?
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2 votes
An plumber charges $50 for a service call, plus $85

per hour of service. If he charged $390, how many
hours did he work?

User Giantriant
by
8.5k points

2 Answers

4 votes
390-50=340

340 divided by 85 is 4

the plumber worked 4 hours

hope this helps
User Mihado
by
8.3k points
4 votes
If he was charged $390 he would have worked for 4 hours
User Myth
by
8.7k points
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