A local photocopying store advertises as follows. " We charge 14 cents per copy for 150 copies or less,6 cents per copy for each copy over 150 but less than 230, and 3 cents per copy for each copy 230 and above. " Let x be the number of copies ordered and C(x) be the cost of the job (in cents ).

Question

A local photocopying store advertises as follows. " We charge 14 cents per copy for 150 copies or less,6 cents per copy for each copy over 150 but less than 230, and 3 cents per copy for each copy 230 and above. " Let x be the number of copies ordered and C(x) be the cost of the job (in cents ).

If x ≤ 150, what is the the cost C(x) of the copies?

I don't know how to to do this because I can't figure out what the fixed overhead cost would be...please help

Answer 1

there is no fixed cost

C(x) = 14x for x<=150

Answer 2

Then what would the cost be for 150<x<230? I don't think there's a fixed cost for this either, but I don't think it'd be correct to write C(x) = 6x.

Answer 3

To find the cost C(x) of the copies when x ≤ 150, we need to consider the pricing structure mentioned in the advertisement.

According to the advertisement, if the number of copies x is less than or equal to 150, the cost per copy is 14 cents. Therefore, we can define the cost function C(x) as:

C(x) = 14x

In this case, the fixed overhead cost is not mentioned in the advertisement, but we can assume it to be zero since the advertisement only mentions the per-copy pricing.

Hence, for x ≤ 150, the cost C(x) of the copies can be calculated by multiplying the number of copies x by the cost per copy, which is 14 cents.