document.write( "Question 1122489: A candle is lit and burns and the length of the candle changes at a constant rate of -1.9 inches per hour. 2 hours after the candle was lit the candle is 8.9 inches long. \r
\n" ); document.write( "\n" ); document.write( "a.Write a formula that expresses the remaining length of the candle in inches,
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\n" ); document.write( "\n" ); document.write( "b.Use your formula from part a. to determine how long the candle was before it was lit. \n" ); document.write( "

Algebra.Com's Answer #738633 by ikleyn(52803) $\"\"$ $\"About$

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\n" ); document.write( "A candle is lit and burns and the length of the candle changes at a constant rate of -1.9 inches per hour.
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document.write( "a.  Write a formula that expresses the remaining length of the candle in inches, \r\n" );
document.write( "L, \r\n" );
document.write( "    in terms of the number of hours t that have elapsed since the candle was lit.\r\n" );
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document.write( "        The remaining length  L(t) = 8.9 + 2*1.9 - 1.9*t  inches,   t >= 0.   (1)\r\n" );
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document.write( "b.  Use your formula from part a. to determine how long the candle was before it was lit.\r\n" );
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document.write( "        how long the candle was before it was lit = L(0) = simply substitute t= 0 into the formula (1) to get = 8.9 + 2*1.9 inches.\r\n" );
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