Question

A plumber visits your home to fix a leak. He charges a flat rate of $35 and $12 per hour. If the total bill was $83, how many hours did he work?

Answer 1

First, You have to subtract 35 from 83 because the 35 is the charge for the job. Next, You get a answer of 48. This you have to divide.
When you divide 48 by 12 you get an answer of 4.
Therefore the plumber worked for a total of 4 hours