Solve the System of Equations by Using Substitution $$\left\{ \begin{array} { l } 5 x + 3 y = 80 \\2 x + y = 30\end{array} \right.$$

question 206

Multiple Choice

Solve the system of equations by using substitution.
- $$\left\{ \begin{array} { l } 5 x + 3 y = 80 \\2 x + y = 30\end{array} \right.$$

• A) \(x = 0 , y = 0\)
• B) \(x = 10 , y = 10\)
• C) \(x = 0 , y = 10\)
• D) \(x = 10 , y = 0\)

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Definitions:

Morpheme

The smallest grammatical unit in a language that carries semantic meaning.

Holophrase

A single word used by an infant that expresses a complex idea or request, indicative of early language development.

Overextension

Use of words in situations in which their meanings become extended or inappropriate.

Reinforcement

The process of providing stimuli following a behavior, which has the effect of increasing the frequency of the behavior.