document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1133371>Question 1133371</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a class in which the final course grade depends entirely on the average of four equally weighted 100-point tests, Erica has scored 94 <BR>\n" );
document.write( "94<BR>\n" );
document.write( ", 89 <BR>\n" );
document.write( "89<BR>\n" );
document.write( ", and 76 <BR>\n" );
document.write( "76<BR>\n" );
document.write( " on the first three.  What range of scores on the fourth test will give Erica a C for the semester (an average between 70 <BR>\n" );
document.write( "70<BR>\n" );
document.write( " and 79 <BR>\n" );
document.write( "79<BR>\n" );
document.write( ", inclusive)? Assume that all test scores have a non-negative value.  \r<BR>\n" );
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document.write( "Express your answer in interval notation.  \r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #750566 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=750566\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> --------------<BR>\n" );
document.write( "Erica has scored 94 <BR>\n" );
document.write( "94<BR>\n" );
document.write( ", 89 <BR>\n" );
document.write( "89<BR>\n" );
document.write( ", and 76 <BR>\n" );
document.write( "76<BR>\n" );
document.write( "on the first three. <BR>\n" );
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document.write( "Say like this:<BR>\n" );
document.write( "Erica has scored 94, 89, and 76 on the first three.\r<BR>\n" );
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document.write( "Her average of FOUR scores if #4 is score x, would be    <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B94%2B89%2B76%29%2F4 ALIGN=MIDDLE  ALT=\"%28x%2B94%2B89%2B76%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "--\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2B259%29%2F4 ALIGN=MIDDLE  ALT=\"%28x%2B259%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Grade for C is  between 70 and 79 inclusive.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=70%3C=%28x%2B259%29%2F4%3C=79 ALIGN=MIDDLE  ALT=\"70%3C=%28x%2B259%29%2F4%3C=79\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=280%3C=x%2B259%3C=316 ALIGN=MIDDLE  ALT=\"280%3C=x%2B259%3C=316\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=280-259%3C=x%3C=316-259 ALIGN=MIDDLE  ALT=\"280-259%3C=x%3C=316-259\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%2821%3C=x%3C=57%29 ALIGN=MIDDLE  ALT=\"highlight%2821%3C=x%3C=57%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Would this make sense for the minimum score?<BR>\n" );
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document.write( "Okay </SPAN>\n" );
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