document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=673146>Question 673146</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Nancy received grades of 72, 83, and 91 on three math exams. What grade must she receive on the fourth exam so that she has at least an 80 average?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #418512 by </B><A HREF=/tutors/aboutme.mpl?userid=rm29924><B>rm29924(97)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rm29924><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=rm29924><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=418512\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x = the grade Nancy must make on the fourth exam to have an average of at least 80\r<BR>\n" );
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document.write( "to get an average you must add the exam grades and divide them by the amount of grades\r<BR>\n" );
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document.write( "72+83+91+x/4>=80<BR>\n" );
document.write( "246+x/4>=80<BR>\n" );
document.write( "multiply both sides by 4 to get rid of it<BR>\n" );
document.write( "246+x>=320<BR>\n" );
document.write( "subtract 246 from both sides<BR>\n" );
document.write( "x>=74\r<BR>\n" );
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document.write( "she must receive at least a 74 on her fourth exam </SPAN>\n" );
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