# 11

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How do I work this problem? Flying with the wind, an airplane can travel 1080 miles in six hours, but against the wind, it goes 360 miles in half the time. Find the air speed and wind speed

• 11 -

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Sra

• algebra -

plane's normal speed = s
wind speed = w

1080(s+w) = 6
360/(s-w) = 3

6s + 6w = 1080
3s - 3w = 360

12s = 1800
s = 150
w = 30

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