SOLUTION: The wave length (W) of a radio wave varies inversely as its frequency (F). A wave length with a frequency of 1200 kilohertz has a length of 300 meters. What is the length of a wa

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Question 168174: The wave length (W) of a radio wave varies inversely as its frequency (F). A wave length with a frequency of 1200 kilohertz has a length of 300 meters. What is the length of a wave with a frequency of 800 kilohertz?
Answer by stanbon(75887) About Me  (Show Source):
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The wave length (W) of a radio wave varies inversely as its frequency (F). A wave length with a frequency of 1200 kilohertz has a length of 300 meters. What is the length of a wave with a frequency of 800 kilohertz?
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W = k/F
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Find "k":
300 = k/1200
k = 360000
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EQUATION:
W = 360000/F
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Find W if f = 800
W = 360000/800
W = 450 meters
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Cheers,
Stan H.