document.write( "Question 1054749: The mean of 5 numbers is 90, if the first four numbers are 85,92,89 and 95 what is the 5th number \n" ); document.write( "
Algebra.Com's Answer #669954 by addingup(3677)![]() ![]() You can put this solution on YOUR website! (85+92+89+95+x)/5 = 90 \n" ); document.write( "85+92+89+95+x = 450 \n" ); document.write( "Add numbers on left and substract the sum from both side, you will then have just the x on the left and your answer on the right. \n" ); document.write( " |