document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=210199>Question 210199</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0130442631/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> I do not understand how to set up this problem.\r<BR>\n" );
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document.write( "Your quiz grades are 73,75,89,and 91. What is the lowest grade you can obtain on the last quiz and still achieve an average of at least 85? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #158833 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=158833\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x = grade of last quiz\r<BR>\n" );
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document.write( "Remember, the average of 5 numbers is simply the sum of those 5 numbers divided by 5. In other words, the average of 73,75,89,91, and 'x' (the last quiz score) is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2873%2B75%2B89%2B91%2Bx%29%2F5 ALIGN=MIDDLE  ALT=\"%2873%2B75%2B89%2B91%2Bx%29%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Since you want \"at least 85\", this means that the average has to be greater than or equal to 85 like so\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2873%2B75%2B89%2B91%2Bx%29%2F5%3E=85 ALIGN=MIDDLE  ALT=\"%2873%2B75%2B89%2B91%2Bx%29%2F5%3E=85\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "I'll let you take it from here. Let me know if you need more help.<BR>\n" );
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