document.write( "Question 375902: Its a word problem and i am not sure how to solve it?\r
\n" ); document.write( "\n" ); document.write( "A forensic specialist took the temperature of a victim's body lying in a street at 2:10 a.m. and found it to be 85.7'F. At 2:40 a.m., the temperature of the body was 84.8'F. When was the murder committed if the air temperature during the night was 55'F? [Remember, normal body temperature is 98.6'F.]\r
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Algebra.Com's Answer #267666 by ankor@dixie-net.com(22740)\"\" \"About 
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A forensic specialist took the temperature of a victim's body lying in a street
\n" ); document.write( " at 2:10 a.m. and found it to be 85.7'F.
\n" ); document.write( " At 2:40 a.m., the temperature of the body was 84.8'F.
\n" ); document.write( " When was the murder committed if the air temperature during the night was 55'F?
\n" ); document.write( " [Remember, normal body temperature is 98.6'F.]
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\n" ); document.write( "Find the body temp loss rate in 30 min, convert to degrees/hr
\n" ); document.write( "85.7 - 84.8 = .9 * 2 = 1.8 degrees/hr
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\n" ); document.write( "Let t = no. of hrs from 98.6 (temp at death) until temp = 84.8
\n" ); document.write( "98.6 - 1.8t = 84.8
\n" ); document.write( "-1.8t = 84.8 - 98.6
\n" ); document.write( "-1.8t = -13.8
\n" ); document.write( "t = \"%28-13.8%29%2F%28-1.8%29\"
\n" ); document.write( "t = 7.67 hrs or 7 hr 40 min prior to 2:40 am
\n" ); document.write( "That would place the time at 7 pm on the previous day
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