<PRE><B>Question 999478</B>
The speed of sound in air on a certain stormy day is about 1125 feet per second. 
What is the speed of sound measured in miles per second? Round your answer to four decimal places. 
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1125(ft/sec)*(1 mile/5280 ft) = (1125*1)/(1*5280)(miles/sec) = 0.2131(miles/sec)

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What is the speed of sound measured in miles per hour? Round your answer to the nearest whole number.
1125(ft/sec) = 0.2131(miles/sec)(3600 sec/hr) = 767.8455 miles/hr 

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Cheers,
Stan H.
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