C=400+2x

[Katherine]

The weekly production cost C of manufacturing X watches is given by the formula C=4000 +2X, where the variable C is in dollars.
A. What is the cost of producing 1000 watches?
B. Waht is the cost of producting 2000 watches?

This is the anwer I came up with I want to make sure it is correct.

C=4000 + 8000 = $12,000 for 1000 watches or $12 per watch

C=4000 + 8000 =$12,000 x 2000 = $24,000 for 2000 watches or $12 per watch

 

[Deleted member 4993]

The weekly production cost C of manufacturing X watches is given by the formula C=4000 +2X, where the variable C is in dollars.
A. What is the cost of producing 1000 watches?
B. Waht is the cost of producting 2000 watches?

This is the anwer I came up with I want to make sure it is correct.

C=4000 + 8000 = $12,000 for 1000 watches or $12 per watch................. Incorrect

You are making 1000 watches. Then,

C = 4000 + 2 * (1000) = 4000 + 2000 = 6000

Now continue.......

C=4000 + 8000 =$12,000 x 2000 = $24,000 for 2000 watches or $12 per watch

.

 

[HallsofIvy]

The weekly production cost C of manufacturing X watches is given by the formula C=4000 +2X, where the variable C is in dollars.
A. What is the cost of producing 1000 watches?
B. Waht is the cost of producting 2000 watches?

This is the anwer I came up with I want to make sure it is correct.

C=4000 + 8000 = $12,000 for 1000 watches or $12 per watch

Where did "8000" come from? X= 1000 so that formula says the cost will be 4000+ 2(1000)

C=4000 + 8000 =$12,000 x 2000 = $24,000 for 2000 watches or $12 per watch

And why are you calculating "per watch"? That was not asked. Though you should have realized that, because there is "overhead" that you have to pay no matter how many watches are made, the "cost per watch" is NOT the same for these two situations.

Suppose you made just one watch. How much would that watch cost, according to this formula?