document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=148543>Question 148543</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if a kid takes 4 tests and it is his average grade and he wants to score a 90 and his first 3 test grades were 84, 93, and 88 what would the last test score be to get an average of 90? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #108887 by </B><A HREF=/tutors/aboutme.mpl?userid=mangopeeler07><B>mangopeeler07(462)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mangopeeler07><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=108887\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Set up an equation for the average: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2884%2B93%2B88%2Bx%29%2F4=90 ALIGN=MIDDLE  ALT=\"%2884%2B93%2B88%2Bx%29%2F4=90\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Combine like terms:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28265%2Bx%29%2F4=90 ALIGN=MIDDLE  ALT=\"%28265%2Bx%29%2F4=90\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "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=360 ALIGN=MIDDLE  ALT=\"265%2Bx=360\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Subtract 265 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=95 ALIGN=MIDDLE  ALT=\"x=95\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "So for the average grade to be 90, the person would have to get a 95. </SPAN>\n" );
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