document.write( "Question 990991: If a candle burns at 2.5 mm a hour and its 20cm long. How long would it take to burn out in hours? \n" ); document.write( "
Algebra.Com's Answer #610928 by ikleyn(52817)\"\" \"About 
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\n" ); document.write( "2.5 mm = 0.25 cm.\r
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\n" ); document.write( "\n" ); document.write( "Proportion:\r
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\n" ); document.write( "\n" ); document.write( "\"0.25%2F20\" = \"1%2Fx\".\r
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\n" ); document.write( "\n" ); document.write( "It gives\r
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\n" ); document.write( "\n" ); document.write( "x = \"20%2F0.25\" = 80 hours.\r
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