Question 452214
At a temperature of t degrees Fahrenheit, sound travels a (???) feet per second, where s= 21.9√(5ft+2457)
During blasting for an avalanche control in the mountains sound traveled at a rate of 1114 ft/second. What was the temperature? 

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There is no "t" in the formula.
What is missing where I have put (???)
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Cheers,
Stan H.