document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1049329>Question 1049329</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi<BR>\n" );
document.write( "joey had some 20cent and ten cent coins.when she used one third of them she hsd $9.60 left. She used half as many 20cent coins as tencent coins.\r<BR>\n" );
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document.write( "how many 10cent and 20cents coins did she use.\r<BR>\n" );
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document.write( "thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #664971 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=664971\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let t = no. of 20 cent coins<BR>\n" );
document.write( "let d = no. of 10 cent coins<BR>\n" );
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document.write( "Do this in cents, $9.60 = 960 cents<BR>\n" );
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document.write( "joey had some 20cent and ten cent coins.<BR>\n" );
document.write( "when she used one third of them she hsd $9.60 left.<BR>\n" );
document.write( "Then she has 2/3 left, therefore<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F3 ALIGN=MIDDLE  ALT=\"2%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >(20t + 10d) = 960<BR>\n" );
document.write( "Multiply by 3, to get rid of the fraction<BR>\n" );
document.write( "2(20t + 10d) = 3(960)<BR>\n" );
document.write( "40t + 20d = 2880<BR>\n" );
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document.write( "She used half as many 20cent coins as ten cent coins:<BR>\n" );
document.write( "t = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F2 ALIGN=MIDDLE  ALT=\"1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >d<BR>\n" );
document.write( "d = 2t<BR>\n" );
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document.write( "how many 10cent and 20cents coins did she use.<BR>\n" );
document.write( "In the 1st equation, replace d with 2t<BR>\n" );
document.write( "40t + 20(2t) = 2880<BR>\n" );
document.write( "40t + 40t = 2880<BR>\n" );
document.write( "t = 2880/80<BR>\n" );
document.write( "t = 36 ea 20 cent coins<BR>\n" );
document.write( "then<BR>\n" );
document.write( "d = 2(36)<BR>\n" );
document.write( "d = 72 ea 10 cent coins<BR>\n" );
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document.write( ";<BR>\n" );
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document.write( "See if this checks out<BR>\n" );
document.write( ".20(36) + .10(72) = 14.40<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F3 ALIGN=MIDDLE  ALT=\"2%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >*14.40 = $9.60<BR>\n" );
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