Question

A company makes jewelry. It costs $6,400 to make 10 pieces of jewelry and $11,200 to make 20 pieces of jewelry. Which equation models the cost, C(x), as a linear function of the number of pieces of jewelry, x? i dont understand this at all
plz help

Answer 1

is anyone answering
:(

Answer 2

What is the cost per unit of the first 10 units?

Answer 3

i have no idea!

Answer 4

Read the first part of the sentence where is says $6,400 for 10 pieces.

Answer 5

i can type thet one?
4 answers they provide and u pick the righ

Answer 6

C(x) = 480x + 1600

Answer 7

?

Answer 8

I am not going to pick the right answer for you. I can help by teaching you how to solve such problems.

Answer 9

ok

Answer 10

is the one i put right cus thats what i got

Answer 11

hello? C(x) = 480x + 1600 is the right answer???

Answer 12

That is the right answer. But there is a significant assumption given the incompleteness of the information in the problem.

Answer 13

can you show me how you got it i wanna know if i did it right

Answer 14

Second 10 units cost $4,800 to make ($11,200 - $6,400).
So, each of the units cost $480 to make.

Answer 15

To make "x" units, it will cost x times cost per unit. Since cost per unit is 480, the answer to this part is 480x.

Answer 16

great! i did it right! :)

Answer 17

Then, the first 10 cost $6,400. So, that implies there is a fixed cost to get started on producing any product. That fixed cost will be $6,400 minus the cost of producing 10 units. => $6,400 - $480*10 = $1,600.

So, to produce x units, it costs $1,600 to setup and then $480 per unit on top.
=> 480x + 1,600