Find the Complete Solution of the System $$\left\{ \begin{array} { r } x + y + z = 3 \\x - y + z = - 2 \\x + y + 3 z = 1\end{array} \right.$$

question 1

Multiple Choice

Find the complete solution of the system. $$\left\{ \begin{array} { r } x + y + z = 3 \\x - y + z = - 2 \\x + y + 3 z = 1\end{array} \right.$$

• A) \(( 3,5,1 )\)
• B) \(\left( \frac { 3 } { 2 } , \frac { 5 } { 2 } , - 1 \right)\)
• C) \(\left( 0 , \frac { 5 } { 2 } , - 1 \right)\)
• D) \(\left( 2 , \frac { 3 } { 2 } , - 1 \right)\)
• E)none

Familiarize with methods for segregating costs into fixed and variable components.

Calculate and understand the significance of the contribution margin ratio.

Interpret cost-volume-profit data through graphical presentations.

Define the concept of unit contribution margin.

---

Definitions:

Humans

Homo sapiens, the species of bipedal primates to which all modern human beings belong, characterized by a highly developed brain.

Dogs

Domesticated mammals known for their loyalty and companionship, commonly kept as pets or used for work in various fields.

Western Cultures

Western cultures refer to societies that are rooted in the histories, social norms, and values of Western Europe and other regions influenced by European immigration, characterized by a focus on individualism and democracy.

Extraversion

A personality trait characterized by outgoingness, high energy, and being socially oriented.