document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=82417>Question 82417</A>: <I><SPAN STYLE=\"word-break: break-all;\"> an arithemetic student needs an average of 70 or more to receive credit for the course. She scored 72, 66, 68 on the first three exams. Write an inequality representing the score she must get on the last test to receive credit for the course.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #59060 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=59060\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> an arithmetic student needs an average of 70 or more to receive credit for the course. She scored 72, 66, 68 on the first three exams. Write an inequality representing the score she must get on the last test to receive credit for the course.<BR>\n" );
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document.write( "Using the standard \"average\" equation; let 4th (unknown) score = x:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2872+%2B+66+%2B+68+%2B+x%29%2F4 ALIGN=MIDDLE  ALT=\"%2872+%2B+66+%2B+68+%2B+x%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >=> 70<BR>\n" );
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document.write( "Multiplying equation by 4 gets rid of the denominator:<BR>\n" );
document.write( "72 + 66 + 68 + x => 4(70)<BR>\n" );
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document.write( "206 + x => 280<BR>\n" );
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document.write( "x => 280 - 206<BR>\n" );
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document.write( "x => 74, the score required to at least get a 70 average:\r<BR>\n" );
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document.write( "Check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=72+%2B+66+%2B+68+%2B+74%29%2F4 ALIGN=MIDDLE  ALT=\"72+%2B+66+%2B+68+%2B+74%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > =<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=280%2F4 ALIGN=MIDDLE  ALT=\"280%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 70  </SPAN>\n" );
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