document.write( "Question 751934: The average of three numbers is 77 . The
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document.write( "first number and second number is 78 and 79 respectively. Find the third number \n" );
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Algebra.Com's Answer #457468 by Cromlix(4381) You can put this solution on YOUR website! total of 3 numbers = 3 * 77 = 231 \n" ); document.write( "Total of known numbers = 78 + 79 = 157 \n" ); document.write( " 231 - 157 = 74 \n" ); document.write( "Therefore 74 is the third number.\r \n" ); document.write( "\n" ); document.write( "Hope this helps. \n" ); document.write( ":-) \n" ); document.write( " |