5 Answered Questions for the topic Row Echelon

12/19/17

#### Use the simplex method to solve the following

A baker has 10 cups of flour, 12 cups of sugar, and 24 eggs. A loaf of raisin bread requires a cup of flour,2 cups of sugar, and 4 eggs, while a raisin cake requires a cup of flour, a cup of sugar...
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Row Echelon

05/02/16

#### Write an appropriate system of equations to solve the following problem.

Suppose you receive a total of $1520 a year in interest from three investments. The interest rates for the three investments are 5%, 7%, and 8%. The 5% investment is half of the 75 investment, and...
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05/24/15

#### Write an augmented matrix for the system. Use row operations to put it in row ecjelon form. Find y then back substitute to find x.

2x+10y=-12
-3x+y=34I have the matrix and what to multiply it by except the last one. I'm really lost. Please help and show work. 2 10 -12 *1/2-3 1 34
1 5 -6 *3
-3...
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05/24/15

#### Write an augmented matrix for the system. Use row operations to put it in row ecjelon form. Find y then back substitute to find x.

x+3y=-18
3x-y=16
I have the matrix but i'm lost on the rest of it. Please show work.
1 3 -18
3 -1 16

#### Solve the system by finding the reduced row-echelon form of the augmented matrix.

Solve the system by finding the reduced row-echelon form of the augmented matrix.x+2y-4z=-4
-x-y+3z=2
x+3y-5z=-6
How many solutions are there to this system?

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