document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1062809>Question 1062809</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A math student has a 100 homework average and test grades of 99, 100, and 97.  The homework average counts 15%, each test counts 20%, and the final exam counts 25%.  What is the lowest grade the student can get on the final exam and still get an A (an average of 90 or better) in the class? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #677831 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=677831\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> homework = 100<BR>\n" );
document.write( "test grades of 99, 100, 97\r<BR>\n" );
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document.write( "homework average counts 15%<BR>\n" );
document.write( "each test counts 20%<BR>\n" );
document.write( "final counts 25%\r<BR>\n" );
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document.write( ".15 * 100 = 15<BR>\n" );
document.write( ".20 * 99 = 19.8<BR>\n" );
document.write( ".20 * 100 = 20<BR>\n" );
document.write( ".20 * 97 = 19.4<BR>\n" );
document.write( ".25 * x = .25 *x\r<BR>\n" );
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document.write( "15 + 19.8 + 20 + 19.4 + .25 * x >= 90\r<BR>\n" );
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document.write( "combine like terms to get 74.2 + .25 * x >= 90\r<BR>\n" );
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document.write( "subtract 74.2 from both sides of the equation to get .25 * x >= 90 - 74.2\r<BR>\n" );
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document.write( "simplify to get .25 * x >= 15.8\r<BR>\n" );
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document.write( "divide both sides of this equation by .25 to get x >= 63.2\r<BR>\n" );
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document.write( "he needs to get greater than or equal to 63.2 on the final to get a final average greater than or equal to 90.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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