document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=629231>Question 629231</A>: <I><SPAN STYLE=\"word-break: break-all;\"> There are three exams in a marking period. A student received grades of 86 and 92 on the first two exams. What grade must the student earn on the last exam to get an average of no less than 90 for the marking period?<BR>\n" );
document.write( "Equation to find their average (let x be their last test grade) _______________<BR>\n" );
document.write( "The lowest grade they could make _______________________\r<BR>\n" );
document.write( "\n" );
document.write( "Please help? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #396117 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=396117\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If you spent more time thinking about the problem than wasting time with fill in the blanks, you might be able to do your own homework.<BR>\n" );
document.write( "(86+92+x)/3>=90<BR>\n" );
document.write( "(86+92+x)>=270<BR>\n" );
document.write( "178+x>=270<BR>\n" );
document.write( "x>=92<BR>\n" );
document.write( "another way to look at it.<BR>\n" );
document.write( "86 misses 90 by 4 (-4)<BR>\n" );
document.write( "92 is pass 90 by 2 (+2)<BR>\n" );
document.write( "+2-4=-2<BR>\n" );
document.write( "You have to make up 2 points so add them to 90<BR>\n" );
document.write( "90+2=92 minimum. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );