SOLUTION: A plumber and his assistant work together to replace he pipes in an old house. The plumber charges $45 an hour for his own labor and $25 an hour for his assistant's labor. The plum
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Question 891087: A plumber and his assistant work together to replace he pipes in an old house. The plumber charges $45 an hour for his own labor and $25 an hour for his assistant's labor. The plumber works twice as long as his assistant on this job, and the labor charge on the final bill is $4025. How long did the plumber and his assistant work on this job? Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! A plumber and his assistant work together to replace he pipes in an old house. The plumber charges $45 an hour for his own labor and $25 an hour for his assistant's labor. The plumber works twice as long as his assistant on this job, and the labor charge on the final bill is $4025. How long did the plumber and his assistant work on this job?
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let x=hrs assistant worked on job
2x=hrs plumber worked on job
25x+45*2x=4025
25x+90x=4025
115x=4025
x=35
2x=70
hrs assistant worked on job=35
hrs plumber worked on job=70
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