document.write( "Question 994660: The average of four numbers is 67 three of these numbers are 67 87 72 what is the fourth number \n" ); document.write( "
Algebra.Com's Answer #613678 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The average of four numbers is 67 three of these numbers are 67 87 72 what is the fourth number \n" ); document.write( "---- \n" ); document.write( "Let the 4th number be \"x\". \n" ); document.write( "Equation: \n" ); document.write( "(67+87+72+x)/4 = 67 \n" ); document.write( "---------- \n" ); document.write( "x + 226 = 268 \n" ); document.write( "--- \n" ); document.write( "x = 42 \n" ); document.write( "------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "---------------- \n" ); document.write( " |