Solution to the System of Inequalities

Oct 13, 2025 by wbrum.org 55 views

Introduction

Dwayne is a burger enthusiast who has decided to sell hamburgers and cheeseburgers at his local market. He has a limited supply of 100 burger buns, which he must use to make both hamburgers and cheeseburgers. Each hamburger sells for $3, and each cheeseburger sells for $3.50. In this scenario, we need to determine which system of inequalities represents the number of hamburgers and cheeseburgers that Dwayne can sell.

The Problem

Let's denote the number of hamburgers as H and the number of cheeseburgers as C. We know that Dwayne has 100 burger buns, so the total number of burgers he can sell is limited by the number of buns available. This gives us our first inequality:

H + C ≤ 100

This inequality states that the total number of hamburgers and cheeseburgers sold cannot exceed 100.

Revenue Inequality

Dwayne wants to maximize his revenue, which is the total amount of money he earns from selling hamburgers and cheeseburgers. The revenue from selling H hamburgers is $3H, and the revenue from selling C cheeseburgers is $3.50C. Therefore, the total revenue is:

3H + 3.50C

Since Dwayne wants to maximize his revenue, we can set up an inequality to represent this:

3H + 3.50C ≥ 3H + 3.50(0)

Simplifying this inequality, we get:

3H + 3.50C ≥ 0

This inequality states that the total revenue must be greater than or equal to zero.

Non-Negativity Inequality

Since Dwayne cannot sell a negative number of hamburgers or cheeseburgers, we must also consider the non-negativity inequality:

H ≥ 0

C ≥ 0

This inequality states that the number of hamburgers and cheeseburgers sold must be non-negative.

System of Inequalities

Combining the inequalities we have derived, we get the following system of inequalities:

H + C ≤ 100

3H + 3.50C ≥ 0

H ≥ 0

C ≥ 0

This system of inequalities represents the constraints on the number of hamburgers and cheeseburgers that Dwayne can sell.

Conclusion

In conclusion, the system of inequalities that represents the number of hamburgers and cheeseburgers that Dwayne can sell is:

H + C ≤ 100

3H + 3.50C ≥ 0

H ≥ 0

C ≥ 0

This system of inequalities takes into account the limited supply of burger buns, the revenue from selling hamburgers and cheeseburgers, and the non-negativity of the number of hamburgers and cheeseburgers sold.

Graphical Representation

To visualize the solution to this system of inequalities, we can graph the constraints on a coordinate plane. The first inequality, H + C ≤ 100, represents a line in the coordinate plane with a slope of -1 and a y-intercept of 100. The second inequality, 3H + 3.50C ≥ 0, represents a line in the coordinate plane with a slope of -3/3.50 and a y-intercept of 0. The third and fourth inequalities, H ≥ 0 and C ≥ 0, represent the x-axis and y-axis, respectively.

Solution to the System of Inequalities

The solution to the system of inequalities is the region in the coordinate plane that satisfies all four inequalities. This region is a triangular area bounded by the lines H + C = 100, 3H + 3.50C = 0, and the x-axis and y-axis.

Final Answer

The final answer to the problem is the system of inequalities:

H + C ≤ 100

3H + 3.50C ≥ 0

H ≥ 0

C ≥ 0

This system of inequalities represents the constraints on the number of hamburgers and cheeseburgers that Dwayne can sell.

Introduction

In our previous article, we explored the system of inequalities that represents the number of hamburgers and cheeseburgers that Dwayne can sell. We derived the system of inequalities and graphed the constraints on a coordinate plane. In this article, we will answer some frequently asked questions about the system of inequalities and provide additional insights into the problem.

Q&A

Q: What is the significance of the first inequality, H + C ≤ 100?

A: The first inequality, H + C ≤ 100, represents the constraint on the total number of burgers that Dwayne can sell. Since he has 100 burger buns, he cannot sell more than 100 burgers in total.

Q: Why is the second inequality, 3H + 3.50C ≥ 0, important?

A: The second inequality, 3H + 3.50C ≥ 0, represents the constraint on the revenue that Dwayne can earn. Since he wants to maximize his revenue, he must sell a combination of hamburgers and cheeseburgers that satisfies this inequality.

Q: What is the significance of the third and fourth inequalities, H ≥ 0 and C ≥ 0?

A: The third and fourth inequalities, H ≥ 0 and C ≥ 0, represent the non-negativity constraint on the number of hamburgers and cheeseburgers that Dwayne can sell. Since he cannot sell a negative number of burgers, these inequalities ensure that the number of hamburgers and cheeseburgers sold is always non-negative.

Q: How can we visualize the solution to the system of inequalities?

A: We can visualize the solution to the system of inequalities by graphing the constraints on a coordinate plane. The first inequality, H + C ≤ 100, represents a line in the coordinate plane with a slope of -1 and a y-intercept of 100. The second inequality, 3H + 3.50C ≥ 0, represents a line in the coordinate plane with a slope of -3/3.50 and a y-intercept of 0. The third and fourth inequalities, H ≥ 0 and C ≥ 0, represent the x-axis and y-axis, respectively.

Q: What is the solution to the system of inequalities?

A: The solution to the system of inequalities is the region in the coordinate plane that satisfies all four inequalities. This region is a triangular area bounded by the lines H + C = 100, 3H + 3.50C = 0, and the x-axis and y-axis.

Q: How can we use the system of inequalities to make decisions about Dwayne's burger sales?

A: We can use the system of inequalities to make decisions about Dwayne's burger sales by analyzing the constraints on the number of hamburgers and cheeseburgers that he can sell. For example, if Dwayne wants to maximize his revenue, he can use the second inequality, 3H + 3.50C ≥ 0, to determine the optimal combination of hamburgers and cheeseburgers to sell.

Conclusion

In conclusion, the system of inequalities that represents the number of hamburgers and cheeseburgers that Dwayne can sell is a powerful tool for making decisions about his burger sales. By analyzing the constraints on the number of hamburgers and cheeseburgers that he can sell, Dwayne can make informed decisions about his business and maximize his revenue.

Additional Insights

The system of inequalities can be used to analyze other business scenarios, such as determining the optimal combination of products to sell or the optimal pricing strategy.
The system of inequalities can be used to model other real-world problems, such as determining the optimal allocation of resources or the optimal scheduling of tasks.
The system of inequalities can be used to develop mathematical models that can be used to make predictions about future business outcomes.

Final Answer

The final answer to the problem is the system of inequalities:

H + C ≤ 100

3H + 3.50C ≥ 0

H ≥ 0

C ≥ 0

This system of inequalities represents the constraints on the number of hamburgers and cheeseburgers that Dwayne can sell.