SOLUTION: An electrician charges a $40 fee to make a house call plus an hourly rate for labor. If the total bill for a job that takes 2 hours comes to $99, what is the electrician’s hourly l

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: An electrician charges a $40 fee to make a house call plus an hourly rate for labor. If the total bill for a job that takes 2 hours comes to $99, what is the electrician’s hourly l      Log On


   

Question 1129949: An electrician charges a $40 fee to make a house call plus an hourly rate for labor. If the total bill for a job that takes 2 hours comes to $99, what is the electrician’s hourly labor rate?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Find the equation of the line which has a y-intercept of 40 and passes through point (2, 99). The hourly rate is the slope.

hourly rate is $29.50 dollars per hour.

Answer by ikleyn(52798) About Me  (Show Source):
You can put this solution on YOUR website!
.
%2899-40%29%2F2 = 59%2F2 = 28.50 dollars per hour.     ANSWER


Such problems you can solve in one line - as I did.