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)\"\" \"About 
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( "
\n" );