SOLUTION: Mighty Mo the Plumber charges $75 for a service call, plus $20 per hour for labor. Gerty had a clogged sink and called Mighty Mo. When he completed the job, he presented her with

Algebra ->  Rate-of-work-word-problems -> SOLUTION: Mighty Mo the Plumber charges $75 for a service call, plus $20 per hour for labor. Gerty had a clogged sink and called Mighty Mo. When he completed the job, he presented her with      Log On


   

Question 804729: Mighty Mo the Plumber charges $75 for a service call, plus $20 per hour for labor. Gerty had a clogged sink and called Mighty Mo. When he completed the job, he presented her with a bill for $125. How long did Mo work on Gerty’s sink?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
y=mx+b
125=20h+75
50=20h
50/20=h
2.5 =h
That is a long time for a clogged drain.