The windchill factor is a measure of the cooling effect that the wind has on a persons

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The windchill factor is a measure of the cooling effect that the wind has on a person’s skin. It calculates the equivalent cooling temperature if there were no wind. The National Weather Service uses the formula 


Windchill temperature = 35.74 + 0.6215T - 35.75V4/25 + 0.4275TV4/25,


where T is the temperature in °F and V is the wind speed in miles per hour, to calculate windchill. The table gives the windchill factor for various wind speeds and temperatures at which frostbite is a risk, and how quickly it may occur.


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Use the formula to determine the windchill temperature to the nearest tenth of a degree, given the following conditions. Compare answers with the appropriate entries in the table.


40°F, 10-mph wind

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Intermediate Algebra

ISBN: 9780134895987

13th Edition

Authors: Margaret Lial, John Hornsby, Terry McGinnis

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