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6 December, 09:10

an plumber charges a flat rate of $25 for a job and $15 for each hour that he works on the job. how many hours did the plumber work on a job if the total charge was $85

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  1. 6 December, 10:57
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    Answer: 3 hours

    Step-by-step explanation:

    If you add up 25+15=40 if you add up 40+15=55, 55+15=70, 70+15=85
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