Use Cramerʹs Rule to Solve the System of Equations $$\begin{array} { l } 5 x - 7 y = 30 \\2 x - 5 y = 12\end{array}$$

question 476

Multiple Choice

Use Cramerʹs rule to solve the system of equations. If D = 0, use another method to determine the solution set.
- $$\begin{array} { l } 5 x - 7 y = 30 \\2 x - 5 y = 12\end{array}$$

• A) \(\{ ( 6,1 ) \}\)
• B) \(\{ ( 6,0 ) \}\)
• C) \(\{ ( 5,1 ) \}\)
• D) Cramer's rule does not apply since \(\mathrm { D } = 0 ; \varnothing\)

---

Definitions:

Observation and Imitation

A method of learning in which an individual observes the actions of others and mimics them, crucial in the acquisition of new behaviors.

Gender-Appropriate Behavior

Actions and manners deemed suitable for an individual based on societal norms related to their gender.

Behavior Modification

Techniques and therapies used to change undesirable behaviors into desirable ones through reinforcement and punishment.

Operant Conditioning

A training approach where the power of a response is altered through incentives or corrective measures.