SOLUTION: Business and finance. 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 cos

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Business and finance. 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 cos      Log On


   

Question 75505: Business and finance. 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?
Thanks
Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
Let w=375
Cost = 0.07w+13.3
Plug in the value for "w" and solve for the Cost
Cost = 0.07(375)+13.3
Cost = 39.55
.
Check by plugging 39.55 back into the original equation and solve for "w"
39.55=0.07w + 13.3
26.25=0.07w
375=w [checks out]
.
.
Let w=1
Cost = 0.07w + 13.3
Cost = 0.07(1) + 13.3
Cost = 13.37
.
check by plugging 13.37 in the formula and solve for "w"
13.37 = 0.07w + 13.3
.07=.07w
1=w [checks out]