document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=621242>Question 621242</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A student earned grades of 78, 78, 91, and 91 on her first four regular tests. She earned a grade of 78 on the final exam and 87 on her class projects. Her combined homework grade was 87. The four regular tests count for 40% of the final grade, the final exam counts for 30%, the project counts for 10%, and homework counts for 20%. What is her weighted mean grade? Round to one decimal point. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #390669 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=390669\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A student earned grades of 78, 78, 91, and 91 on her first four regular tests.<BR>\n" );
document.write( " She earned a grade of 78 on the final exam and 87 on her class projects.<BR>\n" );
document.write( " Her combined homework grade was 87. The four regular tests count for 40% of the final grade, the final exam counts for 30%, the project counts for 10%, and homework counts for 20%.<BR>\n" );
document.write( " What is her weighted mean grade? Round to one decimal point.<BR>\n" );
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document.write( "Find the reg grade average<BR>\n" );
document.write( "r = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2878%2B78%2B91%2B91%29%2F4 ALIGN=MIDDLE  ALT=\"%2878%2B78%2B91%2B91%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "r = 84.5 reg grade average<BR>\n" );
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document.write( "Mean grade<BR>\n" );
document.write( "mg = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284%2884.5%29%2B3%2878%29%2B87%2B2%2887%29%29%2F10 ALIGN=MIDDLE  ALT=\"%284%2884.5%29%2B3%2878%29%2B87%2B2%2887%29%29%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "mg = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28338%2B234%2B87%2B174%29%2F10 ALIGN=MIDDLE  ALT=\"%28338%2B234%2B87%2B174%29%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "mg = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=833%2F10 ALIGN=MIDDLE  ALT=\"833%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "mg = 83.3% is the weighted mean grade </SPAN>\n" );
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