Adding and Subtracting Matrices Answers

In the equation below, variables X and Y represent two matrices. Which property of matrix addition is illustrated below?

In the equation below, variables S, T, and U represent three matrices. Which property of matrix addition is illustrated below?

What is the sum of the matrices shown below?

What is the value of D in the matrix equation below?

Which property is shown in the matrix addition below?

Which property is shown in the matrix addition below?

Paul is taking inventory of unsold ladies’ dresses from last month. The following matrix shows how many of each dress were left in red, blue, white, and green. The matrix below shows the new stock of the same color dresses that arrived in the store today. Which matrix shows the total number of dresses of each color and size that Paul has in stock before any sales were made today?

What is the difference of the matrices shown below?

What is the sum of the matrices shown below?

Four, two-person tennis teams played tennis matches. Ivan collected the number of points won by both players on each team and arranged the information into matrices as shown. Consider the total number of points played by each tennis team. How many teams won 60 points or less?