The Position of a Model Train, in Feet Along the Railroad

question 55

Multiple Choice

The position of a model train, in feet along the railroad track, is given by $s ( t ) = 3 t + 3$ after t seconds.
When will the train have moved a distance of 33 feet

• A)after 30 seconds
• B) after 10 seconds
• C) after 13 seconds
• D) after 12 seconds
• E) after 11 seconds

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Definitions:

Adam Smith

An 18th-century economist known for his writings on classical economics, including the concept of the division of labor and the benefits of free markets.

Absolute Advantage

The ability of a country, individual, company, or region to produce a good or service at a lower cost per unit than competitors using the same amount of resources.

Comparative Advantage

An economic theory that suggests a country should produce and export goods in which it has a lower opportunity cost than other countries.