document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=147633>Question 147633</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose you have 12 coins that total 32 cents. Some of the coins are nickels and the rest are pennies. How many of each coin do you have?   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #108023 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=108023\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> One approach:<BR>\n" );
document.write( "Let x=number of nickels---------------5x=amount of nickels<BR>\n" );
document.write( "Then 12-x=number of pennies---1(12-x)=amount of pennies<BR>\n" );
document.write( "And we are told that the above amounts totals 32 cents so our equation to solve:\r<BR>\n" );
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document.write( "5x+(12-x)=32 or<BR>\n" );
document.write( "5x+12-x=32  subtract 12 from each side<BR>\n" );
document.write( "5x+12-12-x=32-12 collect like terms<BR>\n" );
document.write( "4x=20  divide each side by 4<BR>\n" );
document.write( "x=5------------------------------------number of nickels\r<BR>\n" );
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document.write( "12-x=12-5=7-------------------------------number of pennies\r<BR>\n" );
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document.write( "CK<BR>\n" );
document.write( "5*5+7*1=32<BR>\n" );
document.write( "25+7=32<BR>\n" );
document.write( "32=32\r<BR>\n" );
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document.write( "Another approach:\r<BR>\n" );
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document.write( "Let x=number of nickels<BR>\n" );
document.write( "And let y=number of pennies\r<BR>\n" );
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document.write( "Now we are told the following<BR>\n" );
document.write( "x+y=12------------------------------------eq1<BR>\n" );
document.write( "5x+y=32------------------------------------eq2\r<BR>\n" );
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document.write( "subtract eq1 from eq2 and we get:<BR>\n" );
document.write( "4x=20<BR>\n" );
document.write( "etc.\r<BR>\n" );
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document.write( "Hope this helps---ptaylor </SPAN>\n" );
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