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a telephone technician charges $30 per hour plus a $45 service charge your father's firm hires him to hook up his company's phone system. find the total charges if it takes the telephone technician 6.5 hours to complete the task

User Jetchisel
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2 Answers

4 votes

The total cost is the sum of the hourly rate and the service charge:


Cost_(total)=Hourly+Service


C_(t)=H+S


The hourly charge is the product of the hourly rate and the total time:


Hourly=Rate * Time


H=Rt


Combining these we have:


C_(t)=Rt+s


Substituting the given values:


C_(t)=((\$30)/(hour))(6.5hours)+\$45


C_(t)=\$195+\$45


C_(t)=\$240


The total cost is $240.

User Giuseppe Menegoz
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7.7k points
0 votes

6.5 hora would equal to $195 plus the $45 service charge, it brings the total to $240

User Dlchang
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8.1k points