Modeling with Matrices Answers

Dante is solving the system of equations below. He writes the row echelon form of the matrix. Which matrix did Dante write?

Which of the following is the result of the operation below?

Which operation can be used with the augmented matrix below?

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

The matrix below represents the solution to a system of equations.Which of the following describes the solution?

A store sells yogurt in small, medium, and large sizes. A small yogurt costs $2, a medium costs $3, and a large costs $5. In one hour, the shop sold 27 yogurts for $98. There were five more large yogurts than small yogurts. The matrix below represents the system of equations in this situation.How many of each size yogurt did the store sell during that hour?

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

The drama club at a local high school sells adult, teen, and child tickets for a school play. The matrix below represents the tickets sold and the total cost of the tickets for three performances.Which of the following is the result of performing the row operation on this matrix?

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

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