document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=996001>Question 996001</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am working on these types of word problems and I just don't understand how to set it up my word problem is: the cost of nails varies directly with the number of pounds bought. If 4 pounds of nails cost 11.60, what is the cost of 3.5 pounds? If I could just see an example of how to set a problem like this up it would be greatly appreciated <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #614677 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=614677\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "X=cost of 3.5 lbs<BR>\n" );
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document.write( "Set up as a ratio:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=11.60%2F%284lbs%29=X%2F%283.5lbs%29 ALIGN=MIDDLE  ALT=\"11.60%2F%284lbs%29=X%2F%283.5lbs%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Look at what is happening: The left side is <BR>\n" );
document.write( "calculating the price per pound, so when we multiply<BR>\n" );
document.write( "by 3.5lbs, we are multiplying cost per pound by pounds:<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283.5lbs%29%2811.60%2F%284lbs%29%29=X ALIGN=MIDDLE  ALT=\"%283.5lbs%29%2811.60%2F%284lbs%29%29=X\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283.5lbs%29%282.90%2Flb%29=X ALIGN=MIDDLE  ALT=\"%283.5lbs%29%282.90%2Flb%29=X\"   DISABLED_style= \"max-width:90%; height:auto;\" > (Notice the price per pound is 2.90)\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10.15=X ALIGN=MIDDLE  ALT=\"10.15=X\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "ANSWER: The price of 3.5 pounds is 10.15.<BR>\n" );
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