Solve the Problem Using Matrices $2 .$ A) System 1: 85; System 2: 83
B) System 1

question 87

Multiple Choice

Solve the problem using matrices.
-The final grade for an algebra course is determined by grades on the midterm and final exam. The grades for four students and two possible grading systems are modeled by the following matrices.

Find the final course score for Student 3 for both grading System 1 and System $2 .$

• A) System 1: 85; System 2: 83
• B) System 1: 67.4; System 2: \(98.6\)
• C) System 1: 77.2; System 2: 76
• D) System 1: 44.2; System 2: 53

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Definitions:

Perfectly Competitive

A market structure where many firms sell identical products, entry and exit are easy, and no single buyer or seller has market power.

Total Revenue

The total income generated from the sale of goods or services, calculated by multiplying the price per unit by the number of units sold.

Market Price

The present cost at which one can buy or sell an item or service in a competitive market environment.

Perfectly Elastic

A situation where the demand or supply responds infinitely to changes in price, resulting in a horizontal demand or supply curve.