document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=175614>Question 175614</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sally has seven times as many dimes as nickels. Their value is $3.00. How many nickels does she have? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #130693 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=130693\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Number of nickels:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n ALIGN=MIDDLE  ALT=\"n\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Number of dimes:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d ALIGN=MIDDLE  ALT=\"d\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "We know that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+7n ALIGN=MIDDLE  ALT=\"d+=+7n\"   DISABLED_style= \"max-width:90%; height:auto;\" > because Sally has seven times as many dimes as nickels.\r<BR>\n" );
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document.write( "Each of Sally's nickels is worth 5 cents, so the value, in cents, of all of Sally's nickels is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5n ALIGN=MIDDLE  ALT=\"5n\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  Likewise, the value, in cents, of all of Sally's dimes is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10d ALIGN=MIDDLE  ALT=\"10d\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "We know that the total value of Sally's coins is $3.00, but we can also say that the total value of her coins is 300 cents.  Now we can write:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5n+%2B+10d+=+300 ALIGN=MIDDLE  ALT=\"5n+%2B+10d+=+300\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "But since we also know that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+7n ALIGN=MIDDLE  ALT=\"d+=+7n\"   DISABLED_style= \"max-width:90%; height:auto;\" >, we can substitute <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7n ALIGN=MIDDLE  ALT=\"7n\"   DISABLED_style= \"max-width:90%; height:auto;\" > for <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d ALIGN=MIDDLE  ALT=\"d\"   DISABLED_style= \"max-width:90%; height:auto;\" >:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5n+%2B+10%287n%29+=+300 ALIGN=MIDDLE  ALT=\"5n+%2B+10%287n%29+=+300\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Solving:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5n+%2B+70n+=+300 ALIGN=MIDDLE  ALT=\"5n+%2B+70n+=+300\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=75n+=+300 ALIGN=MIDDLE  ALT=\"75n+=+300\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n+=+300%2F75+=+4 ALIGN=MIDDLE  ALT=\"n+=+300%2F75+=+4\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Therefore Sally has 4 nickels.\r<BR>\n" );
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document.write( "Check:  If Sally has 4 nickels, she must have <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7+%2A+4+=+28 ALIGN=MIDDLE  ALT=\"7+%2A+4+=+28\"   DISABLED_style= \"max-width:90%; height:auto;\" > dimes.  28 dimes are worth $2.80 and 4 nickels are worth $0.20 and $2.80 plus $0.20 is $3.00.  Answer checks.  </SPAN>\n" );
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