SOLUTION: It takes an apprentice twice as long as the experienced plumber to replace the pipes under an old house. If it takes them 5 hours when they work together, how long would it take th
Algebra.Com
Question 961638: It takes an apprentice twice as long as the experienced plumber to replace the pipes under an old house. If it takes them 5 hours when they work together, how long would it take the apprentice alone?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = time in hours
= the experienced plumber's
rate of working
= the apprentice's rate of working
--------------------
Add their rates to get their rate
working together
Multiply both sides by
-------------
The apprentice, working alone, takes 15 hrs
check:
OK
RELATED QUESTIONS
It takes an apprentice four times as long as the experienced plumber to replace the pipes (answered by CubeyThePenguin)
How do I solve this? Can you show me the work as well? I am lost. Thank you.
Working... (answered by josgarithmetic)
A plumber and his assistant work together to replace the pipes in an old house. The... (answered by edjones)
A plumber and his assistant work together to replace he pipes in an old house. The... (answered by lwsshak3)
A day laborer takes three more days to paint a house than an apprentice painter. A master (answered by ptaylor)
an experienced painter can paint a garage twice as fast as his apprentice. working... (answered by rwm)
An experienced bank auditor can check a bank's deposits twice as fast as a new auditor.... (answered by ankor@dixie-net.com)
An experienced bricklayer constructs a small wall in 3 hours. the apprentice completes... (answered by nyc_function)
it takes an apprentice carpenter 2h longer to install a section of floor than it does a... (answered by josgarithmetic)