document.write( "Question 182255: the average of x,y, and z is 80. IF two of the numbers are 74 and 78, then what is the other number? \n" ); document.write( "
Algebra.Com's Answer #136783 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! the average of x,y, and z is 80. IF two of the numbers are 74 and 78, then what is the other number? \n" ); document.write( "--------------------- \n" ); document.write( "(74 + 78 + z)/3 = 80 \n" ); document.write( "152 + z = 240 \n" ); document.write( "z = 88 \n" ); document.write( "===================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H \n" ); document.write( "===================== \n" ); document.write( " |