document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1109372>Question 1109372</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A bag contains 24 red balls and some blue balls . When a blue ball is picked at random the probability that it is a blue ball is 4/7. How many blue balls are there? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #724361 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=724361\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  A bag contains 24 red balls and some blue balls . When a blue ball is picked at random the probability that it is a blue ball is 4/7. How many blue balls are there? <BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "# of red :: 24<BR>\n" );
document.write( "# of blue :: b<BR>\n" );
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document.write( "Total # of balls (24+b)<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "b/(24+b) = 4/7<BR>\n" );
document.write( "7b = 96+4b<BR>\n" );
document.write( "3b = 96<BR>\n" );
document.write( "b = 32 (# of blue balls)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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