document.write( "Question 878434: A student got a 73, 91, 84, and 90 on his tests. What is the minimum grade he must get to have an average of 85? \n" ); document.write( "
Algebra.Com's Answer #530030 by JulietG(1812)![]() ![]() You can put this solution on YOUR website! Assuming there are 5 tests of equal value... \n" ); document.write( ". \n" ); document.write( "So far, he has 338 points (73+91+84+90) \n" ); document.write( "To have an average of 85, he needs .85 * 500 possible points, or 425 \n" ); document.write( "425 - the 338 points he already has = 87 \n" ); document.write( " |