document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=763342>Question 763342</A>: <I><SPAN STYLE=\"word-break: break-all;\"> three circles are tangent externally.the distances between their centers are 23 inches,25 inches,20 inches.find their radii. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #464708 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=464708\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> three circles are tangent externally.the distances between their centers are 23 inches,25 inches,20 inches.find their radii.<BR>\n" );
document.write( "***<BR>\n" );
document.write( "let x=radius of 1st circle<BR>\n" );
document.write( "let y=radius of 2nd circle<BR>\n" );
document.write( "let z=radius of 3rd circle<BR>\n" );
document.write( "..<BR>\n" );
document.write( "x+y=25<BR>\n" );
document.write( "y+z=23<BR>\n" );
document.write( "x+z=20<BR>\n" );
document.write( "..<BR>\n" );
document.write( "x+y=25<BR>\n" );
document.write( "z+y=23<BR>\n" );
document.write( "subtract<BR>\n" );
document.write( "x-z=2<BR>\n" );
document.write( "x+z=20<BR>\n" );
document.write( "add<BR>\n" );
document.write( "2x=22<BR>\n" );
document.write( "x=11<BR>\n" );
document.write( "y=25-x=14<BR>\n" );
document.write( "z=20-x=9<BR>\n" );
document.write( "radius of 1st circle=11 inches<BR>\n" );
document.write( "radius of 2nd circle=14 inches<BR>\n" );
document.write( "radius of 3rd circle=9 inches<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );