document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=188573>Question 188573</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0131346784/algebrahomeworkh>Thinking Mathematically</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> The percentage of global energy used by China exceeds Russia  by 6% and the percentage of global energy used by the United States exceeds Russia by 16.4%.  Combined the U.S., China, and Russia consume 40.4% of the world's energy. Determine the percentage of global energy used by each country.\r<BR>\n" );
document.write( "\n" );
document.write( "Thanks for any help you can give me on this. I've been rereading and rereading problem and can't think of how to do it. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #141396 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=141396\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c ALIGN=MIDDLE  ALT=\"c\"   DISABLED_style= \"max-width:90%; height:auto;\" >= the percentage of global energy used by China<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r ALIGN=MIDDLE  ALT=\"r\"   DISABLED_style= \"max-width:90%; height:auto;\" >= the percentage of global energy used by Russia<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=u ALIGN=MIDDLE  ALT=\"u\"   DISABLED_style= \"max-width:90%; height:auto;\" >= the percentage of global energy used by United States<BR>\n" );
document.write( "given:<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c+=+r+%2B+.06 ALIGN=MIDDLE  ALT=\"c+=+r+%2B+.06\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=u+=+r+%2B+.164 ALIGN=MIDDLE  ALT=\"u+=+r+%2B+.164\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c+%2B+r+%2B+u+=+.404 ALIGN=MIDDLE  ALT=\"c+%2B+r+%2B+u+=+.404\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "Substitute (1) and (2) in (3)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r+%2B+.06+%2B+r+%2B+r+%2B+.164+=+.404 ALIGN=MIDDLE  ALT=\"r+%2B+.06+%2B+r+%2B+r+%2B+.164+=+.404\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3r+=+.404+-+.17 ALIGN=MIDDLE  ALT=\"3r+=+.404+-+.17\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3r+=+.234 ALIGN=MIDDLE  ALT=\"3r+=+.234\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r+=+.078 ALIGN=MIDDLE  ALT=\"r+=+.078\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "And, from (1)<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c+=+r+%2B+.06 ALIGN=MIDDLE  ALT=\"c+=+r+%2B+.06\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "That's all I have time for </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );