Matrices and Row Operations Answers

Kyle wrote a matrix to represent a system of equations. The matrix is shown below.Which of the following describes the solution to the system of equations?

The augmented matrix below represents a system of equations.Which matrix results from the operation ?

A shipping company charges a flat rate of $7 for packages weighing five pounds or less, $15 for packages weighing more than five pounds but less than ten pounds, and $22 for packages weighing more than ten pounds. During one hour, the company had 13 packages that totaled $168. The number of packages weighing five pounds or less was three more than those weighing more than ten pounds. The system of equations below represents the situation.Which matrix can be used to show the number of packages in the different weight classes during that hour?

The matrix below represents a system of equations.Which matrix represents ?

A student wrote the matrix below to represent the solution to a system of equations. Which of the following describes the solution?

Which operation can be used with the augmented matrix below?

A student performed row operations on a matrix as shown below.Which operations did the student perform?

When Lydia performed an operation on the matrix below, she forgot to include one element.What is the value of the unknown element, b?

Juanita wants to perform row operations on the augmented matrix for the system below.Which matrix should Juanita use to perform the operations?

Which matrix represents the solution to the system of equations below?