Question 44108: Can someone explain this to me?
The cost in dollars of manufacturing (w) wing nuts is given by the expression 0.07w + 13.3. Find the cost when 375 wing nuts are made. What is the average cost to manufacture one wing nut?
Answer by fractalier(6550)   (Show Source):
You can put this solution on YOUR website! Posted this one a few days ago, here goes again...
Let us call the cost function
c(w) = .07w + 13.3
Now if the number of wing nuts, w, is 375, we substitute that in for w and get
c(375) = .07(375) + 13.3
c(375) = 26.25 + 13.3
c(375) = $39.55
To find the average cost, we divide that total cost by 375 wing nuts and get
$39.55 / 375 = $.1055 or 10.55 cents each
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