if you can help with any of these that would be fantastic!
1. Solve
3x -3(x-1) =162 . Show all algebra steps.
2. Solve the matrix equation X – XA = D for X.
3.What is the relationship between the three elementary row
operations performed on an augmented matrix and the operations
that lead to equivalent systems of equations?
4.Use matrices to solve. Show all work.
An inheritance of $20,000 is divided among three investments
yielding $1780 in interest per year. The interest rates for the three
investments are 7%, 9% and 11%. Find the amount of each
investment if the second and third were $3000 and $1000 less than
the first respectively.
1. Solve
3x -3(x-1) =162 . Show all algebra steps.
2. Solve the matrix equation X – XA = D for X.
3.What is the relationship between the three elementary row
operations performed on an augmented matrix and the operations
that lead to equivalent systems of equations?
4.Use matrices to solve. Show all work.
An inheritance of $20,000 is divided among three investments
yielding $1780 in interest per year. The interest rates for the three
investments are 7%, 9% and 11%. Find the amount of each
investment if the second and third were $3000 and $1000 less than
the first respectively.