document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=67007>Question 67007</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You have 15 coins in your pocket that are either quarters or nickels. They total $2.75. How many of each coin do you have?  Write and solve a system of equation to model the situation. I so far have have 0.25q+ 0.05=2.75 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #47635 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=47635\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You have 15 coins in your pocket that are either quarters or nickels. They total $2.75. How many of each coin do you have?  Write and solve a system of equation to model the situation. I so far have have 0.25q+ 0.05=2.75\r<BR>\n" );
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document.write( "Let q=number of quarters<BR>\n" );
document.write( "Then n=number of nickels\r<BR>\n" );
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document.write( "LETS DEAL IN PENNIES TO KEEP CONFUSION DOWN.\r<BR>\n" );
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document.write( "Now we are told that q+n=15----------our first equation\r<BR>\n" );
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document.write( "We are also told that:\r<BR>\n" );
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document.write( "25q+5n=275  (all cents)----------------our second equation\r<BR>\n" );
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document.write( "Multiply first equation by 5:\r<BR>\n" );
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document.write( "5q+5n=75  subtract this equation from our second equation:\r<BR>\n" );
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document.write( "20q=200<BR>\n" );
document.write( "q=10--------------------number of quarters\r<BR>\n" );
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document.write( "substitute q=10 in our first equation:\r<BR>\n" );
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document.write( "10+n=15 subtract 10 from both sides<BR>\n" );
document.write( "n=15-10=5 ----------------------------number of nickels\r<BR>\n" );
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document.write( "CK\r<BR>\n" );
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document.write( "10 quarters plus 5 nickels equals 15 coins\r<BR>\n" );
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document.write( "10 quarters=$2.50<BR>\n" );
document.write( "5 nickels=.25\r<BR>\n" );
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document.write( "Total = $2.75\r<BR>\n" );
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document.write( "Hope this helps----ptaylor\r<BR>\n" );
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document.write( " </SPAN>\n" );
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