Write a System of Equations to Describe the Problem Situation

question 70

Multiple Choice

Write a system of equations to describe the problem situation. Use guess and check to solve the problem. An airplane flies eastbound from Boise to Chicago, covering the 1400 miles with the wind in 4 hours. A return flight against the same wind takes 5 hours. Find the speed of the wind, w.

• A) w = 30 mph
• B) w = 35 mph
• C) w = 40 mph
• D) w = 25 mph
• E) w = 20 mph

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