document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1026591>Question 1026591</A>: <I><SPAN STYLE=\"word-break: break-all;\"> alex has the same number of nickels and dimes. his mother gives an additional $4 in nickels and dimes. now alex has twice the nickels and three times the dimes he had before. how much money did he have in the beginning? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #641889 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=641889\">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=+n%5B1%5D+ ALIGN=MIDDLE  ALT=\"+n%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = number of nickels he started with<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d%5B1%5D+ ALIGN=MIDDLE  ALT=\"+d%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = number of dimes he started with<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+n%5B2%5D+ ALIGN=MIDDLE  ALT=\"+n%5B2%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = number of nickels his mother gave him<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d%5B2%5D+ ALIGN=MIDDLE  ALT=\"+d%5B2%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = number of dimes his mother gave him<BR>\n" );
document.write( "--------------------------------------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+n%5B1%5D+=+d%5B1%5D+ ALIGN=MIDDLE  ALT=\"+n%5B1%5D+=+d%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5n%5B2%5D+%2B+10d%5B2%5D+=+400+ ALIGN=MIDDLE  ALT=\"+5n%5B2%5D+%2B+10d%5B2%5D+=+400+\"   DISABLED_style= \"max-width:90%; height:auto;\" > ( in cents )<BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+n%5B1%5D+%2B+n%5B2%5D+=+2%2An%5B1%5D+ ALIGN=MIDDLE  ALT=\"+n%5B1%5D+%2B+n%5B2%5D+=+2%2An%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(4) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d%5B1%5D+%2B+d%5B2%5D+=+3%2Ad%5B1%5D+ ALIGN=MIDDLE  ALT=\"+d%5B1%5D+%2B+d%5B2%5D+=+3%2Ad%5B1%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "There are 4 equations and 4 unknowns, so it's solvable<BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+n%5B1%5D+=+n%5B2%5D+ ALIGN=MIDDLE  ALT=\"+n%5B1%5D+=+n%5B2%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(4) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2d%5B1%5D+=+d%5B2%5D+ ALIGN=MIDDLE  ALT=\"+2d%5B1%5D+=+d%5B2%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5n%5B2%5D+%2B+10d%5B2%5D+=+400+ ALIGN=MIDDLE  ALT=\"+5n%5B2%5D+%2B+10d%5B2%5D+=+400+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5n%5B1%5D+%2B+2%2A10d%5B1%5D+=+400+ ALIGN=MIDDLE  ALT=\"+5n%5B1%5D+%2B+2%2A10d%5B1%5D+=+400+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and, from (1)<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5d%5B1%5D+%2B+2%2A10d%5B1%5D+=+400+ ALIGN=MIDDLE  ALT=\"+5d%5B1%5D+%2B+2%2A10d%5B1%5D+=+400+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+25d%5B1%5D+=+400+ ALIGN=MIDDLE  ALT=\"+25d%5B1%5D+=+400+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d%5B1%5D+=+16+ ALIGN=MIDDLE  ALT=\"+d%5B1%5D+=+16+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and, from (1),<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+n%5B1%5D+=+16+ ALIGN=MIDDLE  ALT=\"+n%5B1%5D+=+16+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5%2An%5B1%5D+%2B+10%2Ad%5B1%5D+=+5%2A16+%2B+10%2A16+ ALIGN=MIDDLE  ALT=\"+5%2An%5B1%5D+%2B+10%2Ad%5B1%5D+=+5%2A16+%2B+10%2A16+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5%2An%5B1%5D+%2B+10%2Ad%5B1%5D+=+80+%2B+160+ ALIGN=MIDDLE  ALT=\"+5%2An%5B1%5D+%2B+10%2Ad%5B1%5D+=+80+%2B+160+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5%2An%5B1%5D+%2B+10%2Ad%5B1%5D+=+240+ ALIGN=MIDDLE  ALT=\"+5%2An%5B1%5D+%2B+10%2Ad%5B1%5D+=+240+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "He had 240 cents, or $2.40 to start with<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+n%5B1%5D+=+n%5B2%5D+ ALIGN=MIDDLE  ALT=\"+n%5B1%5D+=+n%5B2%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(3) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+n%5B2%5D+=+16+ ALIGN=MIDDLE  ALT=\"+n%5B2%5D+=+16+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "(4) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2d%5B1%5D+=+d%5B2%5D+ ALIGN=MIDDLE  ALT=\"+2d%5B1%5D+=+d%5B2%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(4) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2%2A16+=+d%5B2%5D+ ALIGN=MIDDLE  ALT=\"+2%2A16+=+d%5B2%5D+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(4) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+d%5B2%5D+=+32+ ALIGN=MIDDLE  ALT=\"+d%5B2%5D+=+32+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5%2An%5B2%5D+%2B+10%2Ad%5B2%5D+=+5%2A16+%2B10%2A32+ ALIGN=MIDDLE  ALT=\"+5%2An%5B2%5D+%2B+10%2Ad%5B2%5D+=+5%2A16+%2B10%2A32+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5%2An%5B2%5D+%2B+10%2Ad%5B2%5D+=+80+%2B+320+ ALIGN=MIDDLE  ALT=\"+5%2An%5B2%5D+%2B+10%2Ad%5B2%5D+=+80+%2B+320+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5%2An%5B2%5D+%2B+10%2Ad%5B2%5D+=+400+ ALIGN=MIDDLE  ALT=\"+5%2An%5B2%5D+%2B+10%2Ad%5B2%5D+=+400+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "This is correct -his mother gave him $4.00<BR>\n" );
document.write( "OK </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );