Solve the Problem. -How Many Three-Digit Numbers Have the Sum of Their Digits

question 140

Multiple Choice

Solve the problem.
-How many three-digit numbers have the sum of their digits equal to 20?

• A)30
• B)40
• C)36
• D)32

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Definitions:

Depression

An emotional disorder characterized by a chronic condition of depression or a loss of interest in engaging in activities, substantially impairing the conduct of daily affairs.

Hypothesis

A proposed explanation made on the basis of limited evidence as a starting point for further investigation or experimentation.

Independent Variable

In an experiment, the variable that is manipulated or changed to observe its effects on a dependent variable.

Nomothetic

An approach in psychology that seeks to understand the general laws that govern behavior, by studying large groups of individuals.