1) Alex spends all his income on blueberries and strawberries. His Marginal Utility of blueberries is MUB=100-B. His total utility of strawberries is Us=900+150S-S². Find Alex's income if the price of blueberries is PB=$8/kg, the price of strawberries is Ps=$10/kg, and Alex consumes 30kg of blueberries. 2) A profit-maximizing monopoly faces a demand curve D(P)=1000-P, has variable costs VC(Q)=Q², and fixed costs equal to $30,000. Find this monopoly's profit.
1) Alex spends all his income on blueberries and strawberries. His Marginal Utility of blueberries is MUB=100-B. His total utility of strawberries is Us=900+150S-S². Find Alex's income if the price of blueberries is PB=$8/kg, the price of strawberries is Ps=$10/kg, and Alex consumes 30kg of blueberries. 2) A profit-maximizing monopoly faces a demand curve D(P)=1000-P, has variable costs VC(Q)=Q², and fixed costs equal to $30,000. Find this monopoly's profit.
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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Question
![**Microeconomics Problem Set**
1) Alex spends all his income on blueberries and strawberries. His Marginal Utility of blueberries is \( MU_B = 100 - B \). His total utility of strawberries is \( U_S = 900 + 150S - S^2 \). Find Alex's income if the price of blueberries is \( P_B = $8/\text{kg} \), the price of strawberries is \( P_S = $10/\text{kg} \), and Alex consumes 30kg of blueberries.
2) A profit-maximizing monopoly faces a demand curve \( D(P) = 1000 - P \), has variable costs \( VC(Q) = Q^2 \), and fixed costs equal to $30,000. Find this monopoly’s profit.
**Explanation of Formulas and Variables:**
1) **Alex's Consumption and Income Calculation:**
- **Marginal Utility (MU) of Blueberries:** The marginal utility function for blueberries is given by \( MU_B = 100 - B \), where \( B \) represents the quantity of blueberries in kg.
- **Total Utility (U) of Strawberries:** The total utility function for strawberries is given by \( U_S = 900 + 150S - S^2 \), where \( S \) represents the quantity of strawberries in kg.
- **Prices:** The price of blueberries (\( P_B \)) is $8 per kg, and the price of strawberries (\( P_S \)) is $10 per kg.
- **Consumption:** Alex consumes 30 kg of blueberries.
2) **Monopoly's Profit Maximization:**
- **Demand Curve (D):** The demand curve faced by the monopoly is given by \( D(P) = 1000 - P \), where \( P \) is the price level.
- **Variable Costs (VC):** The variable cost function is \( VC(Q) = Q^2 \), where \( Q \) is the quantity produced.
- **Fixed Costs:** The fixed costs are equal to $30,000.
- **Objective:** Determine the monopoly’s profit.
**Further Steps to Solve Problems:**
1) **For Alex’s Income:**
- Determine the cost of blueberries Alex consumes:
\[
\text{Cost of Blueberries} = P_B \times \text{Quantity of Blueberries} = 8 \times 30](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8d98c794-b13e-4730-afe8-143f60931f40%2Fbb4001c8-051f-4787-bed7-001a25f142f8%2Fqd5pzu8_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Microeconomics Problem Set**
1) Alex spends all his income on blueberries and strawberries. His Marginal Utility of blueberries is \( MU_B = 100 - B \). His total utility of strawberries is \( U_S = 900 + 150S - S^2 \). Find Alex's income if the price of blueberries is \( P_B = $8/\text{kg} \), the price of strawberries is \( P_S = $10/\text{kg} \), and Alex consumes 30kg of blueberries.
2) A profit-maximizing monopoly faces a demand curve \( D(P) = 1000 - P \), has variable costs \( VC(Q) = Q^2 \), and fixed costs equal to $30,000. Find this monopoly’s profit.
**Explanation of Formulas and Variables:**
1) **Alex's Consumption and Income Calculation:**
- **Marginal Utility (MU) of Blueberries:** The marginal utility function for blueberries is given by \( MU_B = 100 - B \), where \( B \) represents the quantity of blueberries in kg.
- **Total Utility (U) of Strawberries:** The total utility function for strawberries is given by \( U_S = 900 + 150S - S^2 \), where \( S \) represents the quantity of strawberries in kg.
- **Prices:** The price of blueberries (\( P_B \)) is $8 per kg, and the price of strawberries (\( P_S \)) is $10 per kg.
- **Consumption:** Alex consumes 30 kg of blueberries.
2) **Monopoly's Profit Maximization:**
- **Demand Curve (D):** The demand curve faced by the monopoly is given by \( D(P) = 1000 - P \), where \( P \) is the price level.
- **Variable Costs (VC):** The variable cost function is \( VC(Q) = Q^2 \), where \( Q \) is the quantity produced.
- **Fixed Costs:** The fixed costs are equal to $30,000.
- **Objective:** Determine the monopoly’s profit.
**Further Steps to Solve Problems:**
1) **For Alex’s Income:**
- Determine the cost of blueberries Alex consumes:
\[
\text{Cost of Blueberries} = P_B \times \text{Quantity of Blueberries} = 8 \times 30
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