Question

The lone star plumbing company specialties in leak repairs. a service call fee and an hourly labor rate is charged for each repair. determine the lone star plumbing company service call fee.

Answer 1

Let the service call fee be x and the hourly rate be r, then

we have that

`x+r=65------------(1)`

and

`x+2r=105---------------(2)`

Using the elimination method, and subtracting equation (1) from equation (2), we have

r = 40.

Substituting r = 40 into equation (1), we have

`\begin{gathered} x+(40)=65 \\ \Rightarrow x=65-40=25 \end{gathered}`

Hence, the service call fee is $25