Question

Bob works as a plumber he charges an initial fee of $45 and $32.50 an hour Bob was paid $207.50 for his last job how many hours did Bob work on his last job

Answer 1

We have the following:

Bob's earnings can be calculated with the following equation

`B=45+32.5x`

where x is the number of hours, they tell us that he made a profit of $ 207.50, we replace and solve for x

`\begin{gathered} 207.5=45+32.5x \\ 32.5x=207.5-45 \\ x=(162.5)/(32.5) \\ x=5 \end{gathered}`

Therefore, Bob worked a total of 5 hours