Question 936772
x = speed of airplane in still air
y = speed of wind
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s = d/t
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downwind:
x + y = 1170/3
x + y = 390
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upwind:
x - y = 1550/5
x - y = 310
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put the system of linear equations into standard form
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x + y = 390
x - y = 310
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solution:
x = speed of airplane in still air = 350 mph
y = speed of wind = 40 mph
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