Two DVDs and Three Game Disks Cost $137

question 29

Multiple Choice

Two DVDs and three game disks cost $137.79. Four DVDs and one game disk cost $75.73. What does one of each cost?

• A) DVD = $9.09, game disk = $39.87
• B) DVD = $11.88, game disk = $40.09
• C) DVD = $9.15, game disk = $39.83
• D) DVD = $8.94, game disk = $39.97
• E) DVD = $9.00, game disk = $39.93

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Definitions:

Dependent Variable

In an experiment, it is the variable that is being tested and measured, expected to change as a result of manipulations to the independent variable.

Memorizing Poetry

The act of committing poems to memory for the purpose of internalizing its content, structure, and expressive qualities.

Dependent Variable

In scientific research, the variable being tested and measured, which is expected to change as a result of manipulations to the independent variable.

Cause and Effect

The relationship between an event (the cause) that leads to another event (the effect), establishing a connection where one is the result of the other.