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
Algebra ->
Customizable Word Problem Solvers
-> Finance
-> 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
Log On
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)
