Power and chain rule (where the power rule kicks in because ):
Simplify the leading term as
Quotient rule:
Chain rule:
Put everything together and simplify:
The average of an electrician's hourly wage and a plumber's hourly wage is $32.00. One day a contractor hires an electrician for
9hr of work and the plumber for 2hr of work and pays a grand total of $219.00. Can you help me find the hourly wage for the electrician and for the plumber? I'm very confused on how to go about solving these types of problems.
1 answer:
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