SOLUTION: The frequency of a radio wave varies inversely as its wavelength. If a 50-meter wave has a frequency of 6,000 kilohertz, what is the wavelength of a wave that has a frequency of 40

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: The frequency of a radio wave varies inversely as its wavelength. If a 50-meter wave has a frequency of 6,000 kilohertz, what is the wavelength of a wave that has a frequency of 40      Log On


   

Question 893410: The frequency of a radio wave varies inversely as its wavelength. If a 50-meter wave has a frequency of 6,000 kilohertz, what is the wavelength of a wave that has a frequency of 400 kilohertz? Round your answer to the nearest meter.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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The frequency of a radio wave varies inversely as its wavelength.
If a 50-meter wave has a frequency of 6,000 kilohertz, what is the wavelength of a wave that has a frequency of 400 kilohertz?
Round your answer to the nearest meter.
:
let w = wavelength of a frequency of 400 kc
An inverse ratio equation
w%2F50 = 6000%2F400
cross multiply
400w = 50 * 6000
400w = 300000
w = 300000/400
w = 750 meters