document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=726300>Question 726300</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The cost of 4 notebooks and 5 pens is $20. The cost of 6 notebooks and 2 pens is $19. Which system of equations can be used to find the cost of a notebook \"n\" and the cost of a pen \"p\".<BR>\n" );
document.write( "A)<BR>\n" );
document.write( "5n + 4p = 20 and 2n + 6p = 19<BR>\n" );
document.write( "B)<BR>\n" );
document.write( "4n + 5p = 20 and 6n + 2p = 19<BR>\n" );
document.write( "C)<BR>\n" );
document.write( "4n + 5p = 20 and 2n + 6p = 19<BR>\n" );
document.write( "D)<BR>\n" );
document.write( "5n + 4p = 20 and 6n + 2p =19 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #444547 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=444547\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
document.write( "\n" );
document.write( "The cost of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4 ALIGN=MIDDLE  ALT=\"4\"   DISABLED_style= \"max-width:90%; height:auto;\" > notebooks and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5 ALIGN=MIDDLE  ALT=\"5\"   DISABLED_style= \"max-width:90%; height:auto;\" > pens is $<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20 ALIGN=MIDDLE  ALT=\"20\"   DISABLED_style= \"max-width:90%; height:auto;\" >. \r<BR>\n" );
document.write( "\n" );
document.write( " if the cost of a notebook \"<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n ALIGN=MIDDLE  ALT=\"n\"   DISABLED_style= \"max-width:90%; height:auto;\" >\" and the cost of a pen \"<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p ALIGN=MIDDLE  ALT=\"p\"   DISABLED_style= \"max-width:90%; height:auto;\" >\", than you have<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4n%2B5p=20 ALIGN=MIDDLE  ALT=\"4n%2B5p=20\"   DISABLED_style= \"max-width:90%; height:auto;\" >.....eq.1 \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "and, if he cost of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6 ALIGN=MIDDLE  ALT=\"6\"   DISABLED_style= \"max-width:90%; height:auto;\" > notebooks and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2 ALIGN=MIDDLE  ALT=\"2\"   DISABLED_style= \"max-width:90%; height:auto;\" > pens is $<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=19 ALIGN=MIDDLE  ALT=\"19\"   DISABLED_style= \"max-width:90%; height:auto;\" >, than you have\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6n%2B2p=19 ALIGN=MIDDLE  ALT=\"6n%2B2p=19\"   DISABLED_style= \"max-width:90%; height:auto;\" >.....eq.2 \r<BR>\n" );
document.write( "\n" );
document.write( "so, system of equations can be used to find the cost of a notebook \"n\" and the cost of a pen \"p\" is:\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4n%2B5p=20 ALIGN=MIDDLE  ALT=\"4n%2B5p=20\"   DISABLED_style= \"max-width:90%; height:auto;\" >.....eq.1 <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6n%2B2p=19 ALIGN=MIDDLE  ALT=\"6n%2B2p=19\"   DISABLED_style= \"max-width:90%; height:auto;\" >.....eq.2 <BR>\n" );
document.write( "______________________________\r<BR>\n" );
document.write( "\n" );
document.write( "so, your answer is\r<BR>\n" );
document.write( "\n" );
document.write( "B)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4n+%2B+5p+=+20 ALIGN=MIDDLE  ALT=\"4n+%2B+5p+=+20\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6n+%2B+2p+=+19 ALIGN=MIDDLE  ALT=\"6n+%2B+2p+=+19\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );