document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=983515>Question 983515</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hello, I am having trouble understanding and solving this problem:\r<BR>\n" );
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document.write( "Carla has $2.40 in nickels and dimes. Deron has $5.50 in dimes and quarters. Deron has as many dimes as Carla has nickels and as many quarters as Carla has dimes. How many of each kind of coin does Carla have?\r<BR>\n" );
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document.write( "-Thank you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #604328 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=604328\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Carla has $2.40 in nickels and dimes. Deron has $5.50 in dimes and quarters. Deron has as many dimes as Carla has nickels and as many quarters as Carla has dimes. How many of each kind of coin does Carla have?\r<BR>\n" );
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document.write( "Carla has $2.40 in nickels and dimes.\r<BR>\n" );
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document.write( "Let Carla have x nickels and y dimes<BR>\n" );
document.write( "5x+10y=240..............(1)\r<BR>\n" );
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document.write( "Deron has x dimes <BR>\n" );
document.write( "Deron has y quarters<BR>\n" );
document.write( "10x+25y=550...........(2)\r<BR>\n" );
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document.write( "Multiply (1) by 2 and subtract (2)\r<BR>\n" );
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document.write( "10x+20y=480<BR>\n" );
document.write( "10x+25y=550\r<BR>\n" );
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document.write( "-5y= -70<BR>\n" );
document.write( "y=14\r<BR>\n" );
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document.write( "plug  y to get x\r<BR>\n" );
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document.write( " Deron has $5.50 in dimes and quarters. Deron has as many dimes as Carla has nickels and as many quarters as Carla has dimes. How many of each kind of coin does Carla have?\r<BR>\n" );
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document.write( " </SPAN>\n" );
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