SOLUTION: One day 4 plumbers and 5 helpers earned $350. At the same rate of pay, another group of 5 plumbers and 6 helpers earned $430. How much does a plumber and how much does a helper ear

Question 1010739: One day 4 plumbers and 5 helpers earned $350. At the same rate of pay, another group of 5 plumbers and 6 helpers earned $430. How much does a plumber and how much does a helper earn each day? I can not understand these for the life of me.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
This is really the same as: You have 5 oranges and 4 apples
that cost $4 etc. They are just using plumbers and helpers
Let = daily pay for a plumber
Let = daily pay for plumber's helper
------------------------------------
(1)
(2)
---------------------
Multiply both sides of (1) by
Multiply both sides of (2) by
Subtract (2) from (1)
(1)
(2)
-------------------------

and
(1)
(1)
(1)
(1)
The daily pay for a plumber is $50
The daily pay for plumber's helper is $30
----------------
check:
(2)
(2)
(2)
(2)
OK
You can check equation (1)
RELATED QUESTIONS
The first day, a contractor hired 11 carpenters, 3 masons, and 5 helpers. The second... (answered by ankor@dixie-net.com)

If 6 masons and 8 helpers can do a construct a boundary wall in 10 days while 26 masons (answered by ikleyn)

If the mean income of plumbers is $3000 a month and the standard deviation is $300, what... (answered by hokies)

The completion time of a construction project depends on whether the carpenters and... (answered by ikleyn)

The average hourly wage of plumbers is normally distributed with a population mean of... (answered by edjones)

The Acme Plumbing Company will send a team of 3 plumbers to work on a certain job. The... (answered by jorel1380)

The Acme Plumbing Company will send a team of 3 plumbers to work on a certain job. The... (answered by stanbon)

For a recent job, a plumber earned $28/h, and the plumbers apprentice earned $15/h. The... (answered by stanbon)

Hello my friends and helpers, These are some problems I have not encountered, and I�m... (answered by Fombitz)