document.write( "Question 1094100: The velocity of sound in dry air increase as the temperature increases. At 40 degrees sound travels at a rate of 355 meters per second. At 49 degrees sound travels at a speed of 360 meters per second. Write a linear model for the velocity v (in meters per second) of sound based on the temperature T (in degrees Celsius). Then use your model to estimate the velocity of sound at 60 degrees.\r
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Algebra.Com's Answer #708710 by ikleyn(52812)\"\" \"About 
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document.write( "V = \"V%5B49%5D\" + \"%28%28360-355%29%2F%2849-40%29%29%2A%28T-49%29\" = \r\n" );
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document.write( "  = 360 + \"%285%2F9%29%2A%28T-49%29\",\r\n" );
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document.write( "where V is the velocity of sound in m/s, T is the temperature in degrees Celsius.\r\n" );
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document.write( "To find the value of V at 60 degrees Celsius, substitute T = 60 to the formula and calculate.\r\n" );
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