document.write( "Question 1081831: a student has forgotten the following grades on his test: 87,95, 86, and 88. he needs to have an average of 90 to receive an A for the class. what is the minimum grade he must get on the last test in order to have an average of 90. \n" ); document.write( "
Algebra.Com's Answer #695881 by addingup(3677)\"\" \"About 
You can put this solution on YOUR website!
(87+95+86+88+x)/5 =< 90
\n" ); document.write( "87+95+86+88+x = 450
\n" ); document.write( "add numbers on left, subtract the sum from 450 and you'll have your answer.
\n" ); document.write( "
\n" );