SOLUTION: A plumber charges a fixed amount everyday for travel plus an hourly rate for any work done. On monday he worked 6 hours and earned $242.00 On Tuesday he worked 9hours and earne

Algebra.Com
Question 958611: A plumber charges a fixed amount everyday for travel plus an hourly rate for any work done.
On monday he worked 6 hours and earned $242.00
On Tuesday he worked 9hours and earned $338.00
If he works 11 hours on Wednesday,how much will he earn?

Answer by macston(5194)   (Show Source): You can put this solution on YOUR website!
.
T=total;F=fixed fee; R=hourly rate; x=number of hours
F+xR=T
F+6R=$242
F+9R=$338 Subtract equation from above.
-3R=-$96 Divide each side by -3
R=$32 His hourly rate was $32.
F+6R=$242
F+6($32)=$242
F+$192=$242
F=$50 His fixed fee was $50
For 11 hours(x=11):
F+11R=T
$50+11($32)=T
$50+$352=T
$402=T ANSWER: If he works eleven hours, he makes $402.

RELATED QUESTIONS

A plumber charges a $35 on all house calls plus an hourly rate for labor. If the total... (answered by KMST)
An electrician sent Bonnie an invoice in the amount of a dollars for 6 hours of work that (answered by josgarithmetic)
A plumber charges P200 for a service call plus P100 for each hour of work. How much will... (answered by TimothyLamb)
A painter works for 4 hours everyday from Monday to Friday.What fraction of Week he... (answered by Rhodium)
a plumber charges $51 for 2 hours of work and $74.25 for 3/1/2 hours work. write an... (answered by lynnlo,MathTherapy)
An electrician sent Bonnie an invoice in the amount of A dollars for the six hours of... (answered by ikleyn)
Mr.Ranger is a plumber. He bills his clients for the cost of the call plus the number of... (answered by Earlsdon)
A plumber charges $50 to make a house call. He also charges $35 per hour for labor. Write (answered by sunjr2007)
A plumber charges a fixed rate plus an hourly rate to do house calls. A 2hour job cost... (answered by macston)