document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=616637>Question 616637</A>: <I><SPAN STYLE=\"word-break: break-all;\"> marys avrage in 3 tests is 55.in 4 tests is 65.after 2 other tests her average mark is 55.find the average in the 2 other tests. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #387810 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=387810\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> marys avrage in 3 tests is 55.in 4 tests is 65.after 2 other tests her average mark is 55.find the average in the 2 other tests.<BR>\n" );
document.write( "**<BR>\n" );
document.write( "let x=average in the 2 other tests.<BR>\n" );
document.write( "test scores total=3*55+4*65+2x=425+2x<BR>\n" );
document.write( "number of tests=3+4+2=9<BR>\n" );
document.write( "test scores total/number of tests=55<BR>\n" );
document.write( "(425+2x)/9=55<BR>\n" );
document.write( "(425+2x)=9*55=495<BR>\n" );
document.write( "2x=495-425=70<BR>\n" );
document.write( "x=70/2=35 </SPAN>\n" );
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