document.write( "Question 899533: You have one more math test.
\n" ); document.write( "Here are your present scores:
\n" ); document.write( "89 , 92 , 78 , 83 , 83 .\r
\n" ); document.write( "\n" ); document.write( "What score must you get to raise the mean to 85? \n" ); document.write( "
Algebra.Com's Answer #545481 by swincher4391(1107)\"\" \"About 
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There are going to be 6 tests in total, all averaging out to be 85. So the sum of these tests is 85*6 = 510\r
\n" ); document.write( "\n" ); document.write( "These tests are 89+92+78+83+83+x, where x represents the 6th test.\r
\n" ); document.write( "\n" ); document.write( "89+92+78+83+83+x = 510\r
\n" ); document.write( "\n" ); document.write( "425 + x = 510\r
\n" ); document.write( "\n" ); document.write( "x = 85\r
\n" ); document.write( "\n" ); document.write( "He must get a 85%.\r
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