What is the cost when 150 units are produced?

In summary: I am trying to help you understand how to figure out the formula. It would help if you would answer the widget questions I have posted above. Please don't edit some previous post; just reply to this...
  • #36
These are all wrong.
nae99 said:
ok, so i should only put in the functions which are
c) Profit function P(x) = 325x - 25021.75x
How did you get this? P(x) = R(x) - C(x).
nae99 said:
d) Break-even point 325x= 21.75x + 25 000
The break-even point is the value of x for which C(x) = R(x).
nae99 said:
e) Cost of producing 150 bikes C = 150x + 25 000
The cost function is C(x) = 21.25x + 25,000. What is C(150)?
 
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  • #37
ok, so the formulas are
profit = Revenue - cost P(x) = R(x) - C(x)

break even = C(x) = R(x)
are these right
and the Cost of producing 150 bikes will be C(150) = 21.25x + 25,000
 
  • #38
nae99 said:
ok, so the formulas are
profit = Revenue - cost P(x) = R(x) - C(x)
Yes, but what is P(x) in terms of the formulas for R(x) and C(x)?
nae99 said:
break even = C(x) = R(x)
are these right
Yes, and I wrote this already. Your job is to find the value of x for which C(x) = R(x).
nae99 said:
and the Cost of producing 150 bikes will be C(150) = 21.25x + 25,000
No, what you have on the right is C(x), not C(150). Evaluate your function at x = 150. Your answer should be a number - no x.
 
  • #39
You are just guessing. Plug in numbers until you get corrected enough times that the answer is correct. But you are showing absolutely no understanding of what you are doing. You will never learn how to analyze this kind of problem with that approach.

At this point, my best advice to you is to schedule an appointment with your teacher. I have done everything I can short of working the problem for you, which I will not do.
 
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  • #40
d) Break-even point 325x= 21.75x + 25 000

The break-even point is the value of x for which C(x) = R(x)

R(x) = C(x)
325x = 21.75x + 25 000
325x - 21.75x = 25 000
13.25x = 25 000
13.25x/13.25 = 25 000/13.25
x = 1886.79
 
  • #41
nae99 said:
d) Break-even point 325x= 21.75x + 25 000

The break-even point is the value of x for which C(x) = R(x)

R(x) = C(x)
325x = 21.75x + 25 000
325x - 21.75x = 25 000
13.25x = 25 000
I can't even guess how you got 13.25x from the line above.
nae99 said:
13.25x/13.25 = 25 000/13.25
x = 1886.79
This is way off.
 
  • #42
Mark44 said:
I can't even guess how you got 13.25x from the line above.

This is way off.

oh sorry its suppose to be
325x = 21.75x + 25 000
325x - 21.75x = 25 000
303.25x = 25 000
303.25x/303.25 = 25 000/303.25
x= 82.440
 
  • #43
That looks like the right number. What does it represent?
 
  • #44
Mark44 said:
That looks like the right number. What does it represent?

it represent the break-even point
 
  • #45
Mark44 said:
That looks like the right number. What does it represent?

it represent the break-even point
 
  • #46
Have you done the last part yet? I.e., find the cost of making 150 bikes?
 
  • #47
Mark44 said:
Have you done the last part yet? I.e., find the cost of making 150 bikes?

No, because i am confuse
 
  • #48
Mark44 said:
a) Cost function. It is C(x) = 21.75x + 25,000

All you need to do is evaluate C(150) using the formula above.
 
  • #49
I don't think there is any need to continue this.
 

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