document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=653608>Question 653608</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many green blocks should be added to a bag that holds 1 blue block and 3 yellow blocks to make the probability of randomly selecting a green block from the bag equal to 1/2? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #408447 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=408447\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How many green blocks should be added to a bag that holds 1 blue block and 3 yellow blocks to make the probability of randomly selecting a green block from the bag equal to 1/2?<BR>\n" );
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document.write( "Let the number  be \"x\":<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "x/(1+3+x) = 1/2<BR>\n" );
document.write( "----<BR>\n" );
document.write( "x/(x+4) = 1/2<BR>\n" );
document.write( "2x = x+4<BR>\n" );
document.write( "x = 4 (# of green blocks to add)<BR>\n" );
document.write( "======================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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