Solve the System of Equations A) $( - 1,1,1 )$ B) $( 0,0,1 )$

question 17

Multiple Choice

Solve the system of equations.
- $$\begin{array} { l } 7 x _ { 1 } + 7 x _ { 2 } + x _ { 3 } = 1 \\x _ { 1 } + 8 x _ { 2 } + 8 x _ { 3 } = 8 \\9 x _ { 1 } + x _ { 2 } + 9 x _ { 3 } = 9\end{array}$$

• A) \(( - 1,1,1 )\)
• B) \(( 0,0,1 )\)
• C) \(( 1 , - 1,1 )\)
• D) \(( 0,1,0 )\)

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Definitions:

Direct Labor-Hours

Sum of working hours of staff directly participating in the production process of an item.

Labor Rate Variance

This is the difference between the actual cost of labor and the budgeted or standard cost of labor used in manufacturing.

Direct Labor-Hours

The total hours worked by employees directly involved in the production process, used for allocating labor costs to products.

Variable Manufacturing Overhead

Indirect manufacturing costs that vary with the level of production, such as utilities and materials used in the production process.