document.write( "Question 1009026: Joe's math scores are 88, 70, 100, and 94. What is the lowest score he can get on the next test to average a 90? \n" ); document.write( "
Algebra.Com's Answer #624581 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! We add them together with his unknown fifth score (call it x) and divide by five, setting it up as:\r \n" ); document.write( "\n" ); document.write( "(88+70+100+94+x)/5 >= 90 \n" ); document.write( "88+70+100+94+x >= 450 \n" ); document.write( "352 + x >=450 \n" ); document.write( "x >= 98 \n" ); document.write( "He needs at least a 98. \n" ); document.write( " \n" ); document.write( " |