document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=199894>Question 199894</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Carol puts some green and red unit cubes in a box. The ratio of the number of green cubes to the number of red cubes is 2:1. She adds 12 more red cubes in the box and the ratio becomes 4:5.\r<BR>\n" );
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document.write( "a) How many green cubes are there in the box?\r<BR>\n" );
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document.write( "b) How many red cubes does Carol have in the end?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #150286 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=150286\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \"The ratio of the number of green cubes to the number of red cubes is 2:1\"<BR>\n" );
document.write( "g = 2r\r<BR>\n" );
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document.write( "\"She adds 12 more red cubes in the box and the ratio becomes 4:5\"<BR>\n" );
document.write( "5g = 4(r + 12) ___ 5g = 4r + 48\r<BR>\n" );
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document.write( "substituting ___ 5(2r) = 4r + 48 ___ 10r = 4r + 48 ___ 6r = 48 ___ r = 8\r<BR>\n" );
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document.write( "(a) g = 2(8) ___ g = 16\r<BR>\n" );
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document.write( "(b) r + 12 = 8 + 12 = 20 </SPAN>\n" );
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