Given:
A roofer earns $25 per hour for regular hours worked and $30 per hour for overtime hours worked. He puts in 40 hours of regular time during a certain week and he wishes to earn $1140.
Required:
To find how many hours of overtime should he work.
Explanation:
Let he should work x hours overtime.
Then the equation becomes:
[tex]\begin{gathered} 25(40)+30(x)=1140 \\ 1000+30x=1140 \\ 30x=1140-1000 \\ 30x=140 \\ x=\frac{140}{30} \\ x=4.66 \\ x\approx5 \end{gathered}[/tex]He should work approximately 5 hours.
Final Answer:
He should work approximately 5 hours overtime.