document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=507026>Question 507026</A>: <I><SPAN STYLE=\"word-break: break-all;\"> On the three tests of 100 points each, Takia has an 87 average. What is the lowest score she could earn on the next test to have an 90 average?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #340317 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=340317\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the scores of the first three tests be a, b, and c.  Then:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28a%2Bb%2Bc%29%2F3+=+87 ALIGN=MIDDLE  ALT=\"%28a%2Bb%2Bc%29%2F3+=+87\"   DISABLED_style= \"max-width:90%; height:auto;\" > To find the sum of the first three test scores, multiply both sides by 3.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%2Bb%2Bc+=+261 ALIGN=MIDDLE  ALT=\"a%2Bb%2Bc+=+261\"   DISABLED_style= \"max-width:90%; height:auto;\" > Now let the fourth test score be x, so...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28a%2Bb%2Bc%2Bx%29%2F4+%3E=+90 ALIGN=MIDDLE  ALT=\"%28a%2Bb%2Bc%2Bx%29%2F4+%3E=+90\"   DISABLED_style= \"max-width:90%; height:auto;\" > Substitute <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%2Bb%2Bc+=+261 ALIGN=MIDDLE  ALT=\"a%2Bb%2Bc+=+261\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28261%2Bx%29%2F4+%3E=+90 ALIGN=MIDDLE  ALT=\"%28261%2Bx%29%2F4+%3E=+90\"   DISABLED_style= \"max-width:90%; height:auto;\" > Multiply both sides by 4.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=261%2Bx+%3E=+360 ALIGN=MIDDLE  ALT=\"261%2Bx+%3E=+360\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract 261.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+%3E=+99 ALIGN=MIDDLE  ALT=\"x+%3E=+99\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Takia must score at least 99 points on the fourth test to achieve an overall average of 90.   </SPAN>\n" );
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