A company selling widgets has found that the number of items sold, x, depends upon the price, p at 90000 which they're sold, according the equation z (0.6p + 1)? Due to inflation and increasing health benefit costs, the company has been increasing the price by $0.06 per month. Find the rate at which revenue is changing when the company is selling widgets at $8 each. Revenue is decreasing by dollars per month Hint: Give your answer as a positive value.

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Chapter1: Making Economics Decisions
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### Understanding Revenue Change in Widget Sales

A company selling widgets has observed that the number of items sold, \( x \), depends upon the price, \( p \), at which they're sold, following the equation:

\[ x = \frac{90000}{(0.6p + 1)^2} \]

Due to inflation and increasing health benefit costs, the company has been increasing the price by $0.06 per month. Your task is to determine the rate at which revenue is changing when the company is selling widgets at $8 each.

To find this, use the following steps:

1. **Identify Revenue Function:**
    - Revenue, \( R \), is given by \( R = x \times p \).
    - Substitute the given equation for \( x \):
    \[ R = \left(\frac{90000}{(0.6p + 1)^2}\right) \times p \]

2. **Calculate the Rate of Change of Revenue:**
    - Differentiate \( R \) with respect to time (given that \( p \) is changing over time).
    - Given the price increase rate (\( \frac{dp}{dt} \)), find \( \frac{dR}{dt} \) when \( p = 8 \).

3. **Substitute Values and Solve:**
    - Determine \( \frac{dR}{dt} \) knowing \( \frac{dp}{dt} = 0.06 \).

**Problem Statement Revisited:**

Due to inflation and increasing health benefit costs, the company has been increasing the price by $0.06 per month. Find the rate at which revenue is changing when the company is selling widgets at $8 each.

\[ \text{Revenue is decreasing by} \ \fbox{} \ \text{dollars per month} \]

**Hint:**
Give your answer as a positive value.
Transcribed Image Text:### Understanding Revenue Change in Widget Sales A company selling widgets has observed that the number of items sold, \( x \), depends upon the price, \( p \), at which they're sold, following the equation: \[ x = \frac{90000}{(0.6p + 1)^2} \] Due to inflation and increasing health benefit costs, the company has been increasing the price by $0.06 per month. Your task is to determine the rate at which revenue is changing when the company is selling widgets at $8 each. To find this, use the following steps: 1. **Identify Revenue Function:** - Revenue, \( R \), is given by \( R = x \times p \). - Substitute the given equation for \( x \): \[ R = \left(\frac{90000}{(0.6p + 1)^2}\right) \times p \] 2. **Calculate the Rate of Change of Revenue:** - Differentiate \( R \) with respect to time (given that \( p \) is changing over time). - Given the price increase rate (\( \frac{dp}{dt} \)), find \( \frac{dR}{dt} \) when \( p = 8 \). 3. **Substitute Values and Solve:** - Determine \( \frac{dR}{dt} \) knowing \( \frac{dp}{dt} = 0.06 \). **Problem Statement Revisited:** Due to inflation and increasing health benefit costs, the company has been increasing the price by $0.06 per month. Find the rate at which revenue is changing when the company is selling widgets at $8 each. \[ \text{Revenue is decreasing by} \ \fbox{} \ \text{dollars per month} \] **Hint:** Give your answer as a positive value.
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