Question
A small publishing company is releasing a new book. The production costs will include a one-time fixed cost for editing and an additional cost for each book printed. The total production cost \( C \) (in dollars) is given by the function \( C=16.95 N+550 \), where \( N \) is the number of books. The total revenue earned (in dollars) from selling the books is given by the function \( R=31.90 N \). Let \( P \) be the profit made (in dollars). Write an equation relating \( P \) to \( N \). Simplify your answer as much as possible.
Ask by Chen Welch. in the United States
Feb 03,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
The profit \( P \) in terms of the number of books \( N \) is:
\[
P = 14.95N - 550
\]
Solution
To determine the profit \( P \) in terms of the number of books \( N \), we start by using the given functions for total revenue \( R \) and total production cost \( C \):
- **Revenue:** \( R = 31.90N \)
- **Cost:** \( C = 16.95N + 550 \)
Profit is calculated as the difference between revenue and cost:
\[
P = R - C
\]
Substituting the given expressions:
\[
P = 31.90N - (16.95N + 550)
\]
Simplify the equation by distributing the negative sign and combining like terms:
\[
P = 31.90N - 16.95N - 550
\]
\[
P = (31.90 - 16.95)N - 550
\]
\[
P = 14.95N - 550
\]
**Final Equation:**
\[
P = 14.95\,N\ -\ 550
\]
Reviewed and approved by the UpStudy tutoring team
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Beyond the Answer
To find the profit \( P \), we can use the equation: \[ P = R - C \] Substituting the given functions for revenue \( R \) and total production cost \( C \): \[ P = 31.90N - (16.95N + 550) \] Now, distribute the negative sign: \[ P = 31.90N - 16.95N - 550 \] Combine like terms: \[ P = (31.90 - 16.95)N - 550 \] \[ P = 14.95N - 550 \] So, the equation relating \( P \) to \( N \) is: \[ P = 14.95N - 550 \] This equation shows how the profit depends on the number of books sold, factoring in both the variable cost of production and the fixed costs.