document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=151540>Question 151540</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am trying to get an equation for averaging. <BR>\n" );
document.write( "There are 4  tests in algebra. Jesse scored 97,82, and 86 on the first 3 test.What does<BR>\n" );
document.write( "Jesse need to earn on the last test to make at least a 90 average.?  I think the answer has to be > 90 or 92. How do I put that in an equation? 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 #111400 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=111400\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=score on 4th test\r<BR>\n" );
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document.write( "Remember, to find the average of 4 numbers, simply add the 4 numbers up and divide that sum by 4 (the number of numbers)\r<BR>\n" );
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document.write( "So the average of the 4 tests is:\r<BR>\n" );
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document.write( "In order to \"make at least a 90 average\", we need an average that is greater than or equal to 90. So this means that \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%3E=90 ALIGN=MIDDLE  ALT=\"A%3E=90\"   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=%2897%2B82%2B86%2Bx%29%2F4%3E=90 ALIGN=MIDDLE  ALT=\"%2897%2B82%2B86%2Bx%29%2F4%3E=90\"   DISABLED_style= \"max-width:90%; height:auto;\" > Plug in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=%2897%2B82%2B86%2Bx%29%2F4 ALIGN=MIDDLE  ALT=\"A=%2897%2B82%2B86%2Bx%29%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" >. In other words, replace \"A\" with <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2897%2B82%2B86%2Bx%29%2F4 ALIGN=MIDDLE  ALT=\"%2897%2B82%2B86%2Bx%29%2F4\"   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=97%2B82%2B86%2Bx%3E=360 ALIGN=MIDDLE  ALT=\"97%2B82%2B86%2Bx%3E=360\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply both sides by 4.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=265%2Bx%3E=360 ALIGN=MIDDLE  ALT=\"265%2Bx%3E=360\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine like terms.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%3E=360-265 ALIGN=MIDDLE  ALT=\"x%3E=360-265\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=265 ALIGN=MIDDLE  ALT=\"265\"   DISABLED_style= \"max-width:90%; height:auto;\" > from both sides.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%3E=95 ALIGN=MIDDLE  ALT=\"x%3E=95\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine like terms on the right side.\r<BR>\n" );
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document.write( "Answer:\r<BR>\n" );
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document.write( "So the answer is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%3E=95 ALIGN=MIDDLE  ALT=\"x%3E=95\"   DISABLED_style= \"max-width:90%; height:auto;\" > which means that Jesse needs a 95 or higher on the 4th test to average a 90 or better. </SPAN>\n" );
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