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lana66690 [7]
3 years ago
11

A retailer has determined that the cost C of

Mathematics
1 answer:
adelina 88 [10]3 years ago
7 0
A. The expression given in the question is

c = 6x + (900000/x)
c = (6x^ +900000)/x
I hope that this is the expression that you were looking for.

b. When x = 240, then

c = [6 * (240)^2 + 900000]/ 240
   = (6 * 57600) + 900000/240
   = (345600 + 900000)/240
   = 5190

From the above deduction, it can be concluded that the cost of ordering and storing is 5190. I hope the procedure is clear enough for you to understand.
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Calculus question?
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Remark
If you don't start exactly the right way, you can get into all kinds of trouble. This is just one of those cases. I think the best way to start is to divide both terms by x^(1/2)

Step One
Divide both terms in the numerator by x^(1/2)
y= 6x^(1/2) + 3x^(5/2 - 1/2)
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Step Two
Differentiate the y in the last step.
y' = 6(1/2) x^(- 1/2) + 3*2 x^(2 - 1)
y' = 3x^(-1/2) + 6x  I wonder if there's anything else you can do to this. If there is, I don't see it.

I suppose this is possible.
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Frankly I like the first answer better, but you have a choice of both.
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3 years ago
Emma earns 120 frequent flyer miles for every $40 of merchandise she buys with her credit card. Which of the following equations
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Answer: No, you cannot.

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Last month, Grayson and Justine sold candy to raise money for their debate team. Justine sold 1 1/5 times as much candy as Grays
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= 12/15

= 4/5 of a box of candy

6 0
3 years ago
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