document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=25742>Question 25742</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student's average on the first three tests of the semester was 75.  If the final exam counts as much as two test grades, what must the student make on the final to have an average of 80 or better in the class.\r<BR>\n" );
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document.write( "I know how to do average and everything and I tried taking the formula and plugging in what I had but I dont know what to do or even if what ive done was right.  Any help with this would be greatly appreciated. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #13862 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=13862\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> test1 = T1<BR>\n" );
document.write( "test2 = T2<BR>\n" );
document.write( "test3 = T3<BR>\n" );
document.write( "final = F\r<BR>\n" );
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document.write( "(T1 + T2 + T3)/3 = 75<BR>\n" );
document.write( "that's what the problem says<BR>\n" );
document.write( "solve for (T1 + T2 + T3)<BR>\n" );
document.write( "(T1 + T2 + T3) = 3 x 75 = 225<BR>\n" );
document.write( "also,<BR>\n" );
document.write( "((T1 + T2 + T3) + F) / 5 = 80<BR>\n" );
document.write( "I used 5 because the final coubts as two tests<BR>\n" );
document.write( "(225 + F) / 5 = 80<BR>\n" );
document.write( "225 + F = 400<BR>\n" );
document.write( "F = 175<BR>\n" );
document.write( "this is what the student must score on the final to average 80.  </SPAN>\n" );
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