document.write( "Question 5305: The equation C=5(F-32)/9 gives the relation between Fahrenheit and Celsius temperatures. Find the temperature at which the reading is the same on both thermometers. \n" ); document.write( "
Algebra.Com's Answer #2708 by arunpaul(104)![]() ![]() ![]() You can put this solution on YOUR website! C=5(F-32)/9 \r \n" ); document.write( "\n" ); document.write( "so 9C = 5F-160 \n" ); document.write( "or 9C-5F = -160 ------eq1\r \n" ); document.write( "\n" ); document.write( "again C -F =0 ------eq2 as per given question\r \n" ); document.write( "\n" ); document.write( "subtract (equation2 x 9)from equation 1 \n" ); document.write( "9C-5F =-160 \n" ); document.write( "-(9C-9F)= 0 \n" ); document.write( "------------------\r \n" ); document.write( "\n" ); document.write( "or\r \n" ); document.write( "\n" ); document.write( "9C-5F =-160 \n" ); document.write( "-9C+9F= 0 \n" ); document.write( "------------------ \n" ); document.write( "-5F +9F = -160 \n" ); document.write( "or 4F = -160 \n" ); document.write( "or F = (-160/4) \n" ); document.write( "or F = -40\r \n" ); document.write( "\n" ); document.write( "at -40F = -40C (Ans) \n" ); document.write( " \n" ); document.write( " |