document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=13290>Question 13290</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I really need your help here is my question\r<BR>\n" );
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document.write( "You have made the scores of 81,76 and 82 on three quizzes. What is the least you can make on the fourth quiz to have an average of at least 80? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #6663 by </B><A HREF=/tutors/aboutme.mpl?userid=bam878s><B>bam878s(77)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=bam878s><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=6663\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Average=(quiz1+quiz2+quiz3+quiz4)\4<BR>\n" );
document.write( "So to get an 80 we solve<BR>\n" );
document.write( "80=(81+76+82+x)\4 for x (let x=quiz4)<BR>\n" );
document.write( "multiply both sides by 4<BR>\n" );
document.write( "320=81+76+82+x<BR>\n" );
document.write( "320=239+x subtract 239 from both sides<BR>\n" );
document.write( "320-239=239+x-239<BR>\n" );
document.write( "81=x<BR>\n" );
document.write( "You need to make at least an 81. </SPAN>\n" );
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