Solve the Problem by Writing a Variation Model

question 240

Multiple Choice

Solve the problem by writing a variation model. The costs of a trucking company vary jointly with the number of trucks in service and the number of hours they are used. When 3 trucks are used for 7 hours each, the costs are $1,533. Find the costs of using 9 trucks, each for 13 hours.

• A) $9,141
• B) $9,441
• C) $8,841
• D) $9,741
• E) $8,541

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Definitions:

Anxiety Disorders

A group of mental health disorders characterized by significant feelings of anxiety and fear, impacting daily living.

Behaviourally Inhibited

Describes individuals who demonstrate a consistent pattern of shyness, fearfulness, and withdrawal from unfamiliar people, situations, or environments.

Temperamentally Bold

Refers to individuals who show a natural tendency to be fearless, adventurous, and confident in unfamiliar situations.

ADHD

A neurodevelopmental disorder characterized by patterns of inattention, hyperactivity, and impulsivity, affecting daily functioning or development.