document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1171092>Question 1171092</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Evie has scores of 72, 78, 80, and 84 on four Science quizzes. What score must she get on the next quiz to have an average of at least 80?<BR>\n" );
document.write( "Write the inequality. use x for the variable. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #795983 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=795983\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> mean-total/n<BR>\n" );
document.write( "80=total/5, so total must be at least 400<BR>\n" );
document.write( "the total is 314 from the 4<BR>\n" );
document.write( "that leaves 86 as the minimum score needed.<BR>\n" );
document.write( "-<BR>\n" );
document.write( "72 is -8 from 80<BR>\n" );
document.write( "78 is -2<BR>\n" );
document.write( "80 is the same<BR>\n" );
document.write( "84 is +4<BR>\n" );
document.write( "the sum of the differences is -6. So the next quiz needs to be +6 or 86. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );