The diagram shows movement of thermal energy. At bottom a fire has red curved lines labeled Y with arrowheads pointing upward to
a pot. In the pot are red balls at the bottom and blue balls at the top. Black lines with arrowheads point upward from the red balls in the center of the pot, and black curved lines labeled W with arrowheads point downward from the blue balls along the sides of the pot. The handle of the pot is red near the pot and labeled X. The pot handle is held by a hand labeled Z. In which areas of the diagram does conduction occur? W and X X and Z Y and Z Z and W
2 answers:
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Answer:
Explanation:
Given that the operating cost is
cents per mile
total miles covered is given as
so total cost of drive is given as
$
time taken by the truck to move the distance is given as
So total earnings of the driver is given as
$
now total profit of the driver is given as
$
to maximize the profit we have
so we have