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A plane travels 1000 miles in 2 hours with a tailwind. The return trip takes 2.5 hours with a headwind. Let p be the rate of the plane in still air in miles per hour and let w be the rate of the wind in miles per hour. Determine the two equations of the system described here.
Solve the system by the method of substitution. Interpret the solution.
Polygraph Test
A lie detector test that measures and records several physiological indicators such as blood pressure, pulse, respiration, and skin conductivity while a subject is asked questions.
Emotional Arousal
The complex psychological and physiological state of being awoken or stimulated to action by emotions.
Validity
The ability of a test to measure what it was designed to measure.
Deception
The act of misleading or tricking someone by concealing or distorting the truth.
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