Solve the System of Equations Using Substitution $$\left\{ \begin{array} { l } x y - x ^ { 2 } = - 20 \\x - 2 y = 3\end{array} \right.$$

question 85

Multiple Choice

Solve the system of equations using substitution.
- $$\left\{ \begin{array} { l } x y - x ^ { 2 } = - 20 \\x - 2 y = 3\end{array} \right.$$

• A) \(x = - 5 , y = - 1 ; x = 8 , y = \frac { 11 } { 2 }\)
• B) \(x = - 5 , y = - 1 ; x = \frac { 11 } { 2 } , y = 8\)
• C) \(x = 5 , y = 1 ; x = - \frac { 11 } { 2 } , y = - 8\)
• D) \(x = 5 , y = 1 ; x = - 8 , y = - \frac { 11 } { 2 }\)

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Definitions:

Supplies Cost

The expense incurred to acquire supplies necessary for the production of goods or the operation of a business.

Variable Overhead Efficiency Variance

The difference between the actual variable overhead costs incurred and the expected variable overhead costs based on standard cost accounting practices.

Direct Labor-hours

The whole amount of production time by workers intimately involved in manufacturing.

Variable Manufacturing Overhead

Indirect manufacturing costs that fluctuate with production volume, such as utilities and indirect materials.