document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=828411>Question 828411</A>: <I><SPAN STYLE=\"word-break: break-all;\"> May I please have assistance on how to calculate this?<BR>\n" );
document.write( "Mary needed different colored balloons for decoration. She had $1.25 and<BR>\n" );
document.write( "spent it all on a number of white, red, and blue balloons. A white balloon costs<BR>\n" );
document.write( "$.10, a red one $.15 and a blue one $.05. She bought one white balloon less<BR>\n" );
document.write( "than the red and the total number of white and red balloons equals the number<BR>\n" );
document.write( "of blue ones. How many of each color did Mary buy? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #499296 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=499296\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Mary needed different colored balloons for decoration. She had $1.25 and<BR>\n" );
document.write( "spent it all on a number of white, red, and blue balloons. <BR>\n" );
document.write( "A white balloon costs $.10, a red one $.15 and a blue one $.05. <BR>\n" );
document.write( "She bought one white balloon less than the red <BR>\n" );
document.write( "and the total number of white and red balloons equals the number<BR>\n" );
document.write( "of blue ones. <BR>\n" );
document.write( "How many of each color did Mary buy?<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "Equations:<BR>\n" );
document.write( "Value Eq:: 10w + 15r + 5b = 125 cents<BR>\n" );
document.write( "Quantity::  w  - r   + 0  = -1<BR>\n" );
document.write( "Quantity::  w  + r   - b  =  0<BR>\n" );
document.write( "======================================<BR>\n" );
document.write( "I used a matrix function on my calculator to get:<BR>\n" );
document.write( "w = 3 (# of white)<BR>\n" );
document.write( "r = 4 (# of red)<BR>\n" );
document.write( "b = 7 (# of blue)<BR>\n" );
document.write( "=======================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );