document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=357564>Question 357564</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please HELP!!!!\r<BR>\n" );
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document.write( "Peter Parker has a piggy that bank contains only nickels and dimes. The total value of the coins in Pete's bank is $2.75. If the nickels were dimes and the dimes were nickels, the total value of the coins would be $3.25. Find the number of nickels in Parker's bank. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #255357 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=255357\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a piggy that bank contains only nickels and dimes.<BR>\n" );
document.write( " The total value of the coins in Pete's bank is $2.75.<BR>\n" );
document.write( " If the nickels were dimes and the dimes were nickels, the total value of the<BR>\n" );
document.write( "coins would be $3.25.<BR>\n" );
document.write( " Find the number of nickels:<BR>\n" );
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document.write( "Let n = no. of nickels<BR>\n" );
document.write( "Let d = no. of dimes<BR>\n" );
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document.write( "Write an equation for each statement:<BR>\n" );
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document.write( "\"The total value of the coins in Pete's bank is $2.75.\"<BR>\n" );
document.write( ".05n + .10d = 2.75<BR>\n" );
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document.write( "\"If the nickels were dimes and the dimes were nickels, the total value of the<BR>\n" );
document.write( " coins would be $3.25.\"<BR>\n" );
document.write( ".10n + .05d = 3.25<BR>\n" );
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document.write( "Multiply the above equation by 2, subtract the 1st equation<BR>\n" );
document.write( ".20n + .10d = 6.50<BR>\n" );
document.write( ".05n + .10d = 2.75<BR>\n" );
document.write( "-----------------------subtraction eliminates d, find n<BR>\n" );
document.write( ".15n = 3.75<BR>\n" );
document.write( "n = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3.75%2F.15 ALIGN=MIDDLE  ALT=\"3.75%2F.15\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "n = 25 nickels<BR>\n" );
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document.write( "Check solution:<BR>\n" );
document.write( "find d using the 1st equation<BR>\n" );
document.write( ".05(25) + .10d = 2.75<BR>\n" );
document.write( "1.25 + .10d = 2.75<BR>\n" );
document.write( ".10d = 2.75 - 1.25<BR>\n" );
document.write( ".10d = 1.50<BR>\n" );
document.write( "d = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1.50%2F.10 ALIGN=MIDDLE  ALT=\"1.50%2F.10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "d = 15 dimes<BR>\n" );
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document.write( "Find the total using the 2nd equation<BR>\n" );
document.write( ".10(25) + .05(15) =<BR>\n" );
document.write( "2.50 + .75 = 3.25; confirms our solution\r<BR>\n" );
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document.write( " </SPAN>\n" );
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