document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=805553>Question 805553</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve for A, B and r in the following equations:\r<BR>\n" );
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document.write( "A+B=9250\r<BR>\n" );
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document.write( "A+Br=9000\r<BR>\n" );
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document.write( "A+Br^2=8775\r<BR>\n" );
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document.write( "I have tried to cancel off the A's but the values I am getting do not make sense.<BR>\n" );
document.write( "Could you please help? <BR>\n" );
document.write( "Thank you.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #485315 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=485315\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve for A, B and r in the following equations:\r<BR>\n" );
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document.write( "A+B=9250\r<BR>\n" );
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document.write( "A+Br=9000\r<BR>\n" );
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document.write( "A+Br^2=8775<BR>\n" );
document.write( "================<BR>\n" );
document.write( "A+B=9250<BR>\n" );
document.write( "A+Br=9000<BR>\n" );
document.write( "------------ Subtract<BR>\n" );
document.write( "B - Br = 250  <BR>\n" );
document.write( "B*(1-r) = 250<BR>\n" );
document.write( "B = 250/(1-r)  <BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "A+B=9250<BR>\n" );
document.write( "A+Br^2=8775<BR>\n" );
document.write( "-------------- Subtract<BR>\n" );
document.write( "B - Br^2 = 475<BR>\n" );
document.write( "B(1-r^2) = 475<BR>\n" );
document.write( "(1-r)*(1-r^2) = 475<BR>\n" );
document.write( "r^3 - r^2 - r - 474 = 0<BR>\n" );
document.write( "r = 8.1895258 (by graphing)<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "B = 250/(1-r)<BR>\n" );
document.write( "B = -34.7728<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "A = 9284.7728 </SPAN>\n" );
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