document.write( "Question 55831: o.k., one more for today, thank you everyone who helped me!\r
\n" ); document.write( "\n" ); document.write( "A temperature of 41 degrees F is equivalent to 278.2 degrees K, while a temp. of 86 degrees F is equivalent to 303.2 degrees K. Find the converting Kelvin temp. to Fahrenheit. What is the Fahrenheit temp. when it is 180 degrees K?\r
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Algebra.Com's Answer #37872 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
o.k., one more for today, thank you everyone who helped me! \r\n" );
document.write( "A temperature of 41 degrees F is equivalent to 278.2 degrees K,\r\n" );
document.write( "while a temp. of 86 degrees F is equivalent to 303.2 degrees K. \r\n" );
document.write( "Find the converting Kelvin temp. to Fahrenheit. What is the \r\n" );
document.write( "Fahrenheit temp. when it is 180 degrees K? \r\n" );
document.write( "Word problems stump me....\r\n" );
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document.write( "This is the problem of finding the equation of the line that\r\n" );
document.write( "passes through two points.\r\n" );
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document.write( "Let x = Kelvin temperature\r\n" );
document.write( "Let y = Fahrenheit temperature\r\n" );
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document.write( ">>...41 degrees F is equivalent to 278.2 degrees K...<<\r\n" );
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document.write( "Translation: when x = 278.2, y = 41 OR\r\n" );
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document.write( "The line passes through the point (278.2, 41)\r\n" );
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document.write( ">>...56 degrees F is equivalent to 303.2 degrees K...<<\r\n" );
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document.write( "Translation: when x = 303.2, y = 86 OR\r\n" );
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document.write( "The line passes through the point (303.2, 86)\r\n" );
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document.write( "Use the slope formula\r\n" );
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document.write( "     y2 - y1        86 - 41       9   \r\n" );
document.write( "m = --------- = --------------- = -- = 1.8\r\n" );
document.write( "     x2 - x1     303.2 - 278.2    5     \r\n" );
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document.write( "Use the point-slope formula\r\n" );
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document.write( "y - y1 = m(x - x1)\r\n" );
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document.write( "y - 41 = 1.8(x - 278.2)\r\n" );
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document.write( "y - 41 = 1.8x - 500.76\r\n" );
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document.write( "     y = 1.8x - 459.76\r\n" );
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document.write( "We can change the x to K and the y to F:\r\n" );
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document.write( "     F = 1.5K - 459.76\r\n" );
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document.write( ">>...What is the Fahrenheit temp. when it is 180 degrees K?...<<\r\n" );
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document.write( "     F = 1.5(180) - 459.76\r\n" );
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document.write( "     F = -135.76°\r\n" );
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document.write( "Edwin
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