document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=329074>Question 329074</A>: <I><SPAN STYLE=\"word-break: break-all;\"> My test scores are75,90,77,88, out of 100. What should my fifth grade so that the average is at least 83? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #235783 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=235783\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Your total score now is 75 + 90 + 77 + 88 = 330<BR>\n" );
document.write( "You have 4 scores.<BR>\n" );
document.write( "Add one more score and you'll have 5 scores.<BR>\n" );
document.write( "Divide that by 5 and you'll get the new average.<BR>\n" );
document.write( "You want the new average to be >= 83.\r<BR>\n" );
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document.write( "Let x be the fifth score.\r<BR>\n" );
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document.write( "Your formula is (330 + x) / 5 >= 83\r<BR>\n" );
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document.write( "This will give you 5 scores that, divided by 5, will give you an average that is greater than or equal to 83.\r<BR>\n" );
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document.write( "Multiply both sides of that equation by 5 to get:\r<BR>\n" );
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document.write( "330 + x >= 83 * 5 which becomes:\r<BR>\n" );
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document.write( "330 + x >= 415\r<BR>\n" );
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document.write( "Subtract 330 from both sides of the equation to get:\r<BR>\n" );
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document.write( "x >= 415 - 330 which becomes:\r<BR>\n" );
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document.write( "x >= 85.\r<BR>\n" );
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document.write( "You need to get 85 or more to have an overall average of 83.\r<BR>\n" );
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document.write( "Your old total is 330.\r<BR>\n" );
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document.write( "Add 85 to it to get a new total of 415.\r<BR>\n" );
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document.write( "Divide 415 by 5 and you get an average of 85.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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