Solve the Problem by Using a System of Equations

question 210

Multiple Choice

Solve the problem by using a system of equations. The tens digit of a two-digit number is 7 less than three times the units digit. If the sum of the digits is 9, find the number.

• A) 57
• B) 54
• C) 45
• D) 48

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Definitions:

Elaboration Likelihood Model

A theory of persuasion which proposes that persuasive messages can influence attitudes by two different routes: central or peripheral.

Central Route

A method of persuasion that involves in-depth analysis of the content of a message, leading to lasting attitude change.

Peripheral Route

A method of persuasion that relies on cues outside of the message content itself, such as the attractiveness or credibility of the source.

Persuasion

The act of convincing someone to do or believe something through reasoning or argument.