Westonci.ca is your go-to source for answers, with a community ready to provide accurate and timely information. Join our platform to connect with experts ready to provide precise answers to your questions in various areas. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.

Question 9 of 15

(a) Write a cost function to represent the cost [tex]\( C(x) \)[/tex] for printing [tex]\( x \)[/tex] thousand pages for a given month.
[tex]\[ C(x) = 1875 + 50x \][/tex]

(b) Write a function representing the average cost [tex]\( \bar{C}(x) \)[/tex] for printing [tex]\( x \)[/tex] thousand pages for a given month.
[tex]\[ \bar{C}(x) = \frac{1875}{x} + 50 \][/tex]

(c) Complete the table. Round your answers to two decimal places, if necessary.

[tex]\[
\begin{tabular}{|c|c|c|c|c|}
\hline
x & 20 & 50 & 100 & 200 \\
\hline
\bar{C}(x) & \square & \square & \square & \square \\
\hline
\end{tabular}
\][/tex]


Sagot :

Let's solve the problem step by step.

The average cost function is given by:
[tex]\[ \bar{C}(x) = \frac{1875}{x} + 50 \][/tex]

### Part 3 of 4:
We need to fill in the table for different values of [tex]\( x \)[/tex] (in thousand pages) using the average cost function [tex]\(\bar{C}(x)\)[/tex].

Given values of [tex]\( x \)[/tex] are 20, 50, 100, and 200.

1. For [tex]\( x = 20 \)[/tex]:
[tex]\[ \bar{C}(20) = \frac{1875}{20} + 50 \][/tex]
Calculate [tex]\(\frac{1875}{20}\)[/tex]:
[tex]\[ \frac{1875}{20} = 93.75 \][/tex]
Then:
[tex]\[ \bar{C}(20) = 93.75 + 50 = 143.75 \][/tex]

2. For [tex]\( x = 50 \)[/tex]:
[tex]\[ \bar{C}(50) = \frac{1875}{50} + 50 \][/tex]
Calculate [tex]\(\frac{1875}{50}\)[/tex]:
[tex]\[ \frac{1875}{50} = 37.5 \][/tex]
Then:
[tex]\[ \bar{C}(50) = 37.5 + 50 = 87.5 \][/tex]

3. For [tex]\( x = 100 \)[/tex]:
[tex]\[ \bar{C}(100) = \frac{1875}{100} + 50 \][/tex]
Calculate [tex]\(\frac{1875}{100}\)[/tex]:
[tex]\[ \frac{1875}{100} = 18.75 \][/tex]
Then:
[tex]\[ \bar{C}(100) = 18.75 + 50 = 68.75 \][/tex]

4. For [tex]\( x = 200 \)[/tex]:
[tex]\[ \bar{C}(200) = \frac{1875}{200} + 50 \][/tex]
Calculate [tex]\(\frac{1875}{200}\)[/tex]:
[tex]\[ \frac{1875}{200} = 9.375 \][/tex]
Then:
[tex]\[ \bar{C}(200) = 9.375 + 50 = 59.38 \][/tex]

Now, we can fill in the table as follows:

[tex]\[ \begin{array}{|c|c|c|c|c|} \hline x & 20 & 50 & 100 & 200 \\ \hline \bar{C}(x) & 143.75 & 87.5 & 68.75 & 59.38 \\ \hline \end{array} \][/tex]

So the table with completed values is:

[tex]\[ \begin{array}{|c|c|c|c|c|} \hline x & 20 & 50 & 100 & 200 \\ \hline \bar{C}(x) & 143.75 & 87.5 & 68.75 & 59.38 \\ \hline \end{array} \][/tex]