document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1111472>Question 1111472</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mrs.Rossi wrote the following clues for a mystery numbers<BR>\n" );
document.write( "it is a 4-digit number<BR>\n" );
document.write( "the tens are double the ones<BR>\n" );
document.write( "the thousands are double the tens<BR>\n" );
document.write( "the sum of the digits is 19<BR>\n" );
document.write( "           what number is it </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #726478 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=726478\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Mrs.Rossi wrote the following clues for a mystery numbers<BR>\n" );
document.write( "it is a 4-digit number = a10^3+b10^2+c10+d<BR>\n" );
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document.write( "the tens are double the ones: c = 2d<BR>\n" );
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document.write( "the thousands are double the tens:: a = 2c = 4d<BR>\n" );
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document.write( "the sum of the digits is 19 :: a + b + c + d = 19<BR>\n" );
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document.write( "what number is it?<BR>\n" );
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document.write( "Substitute for a and c to get:<BR>\n" );
document.write( "4d + b + 2d + d = 19<BR>\n" );
document.write( "b + 7d = 19<BR>\n" );
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document.write( "d = 2 ; b = 5 ; a = 4 ; a = 8<BR>\n" );
document.write( "Ans:: 8542<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "----------  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );