document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=312509>Question 312509</A>: <I><SPAN STYLE=\"word-break: break-all;\">   <BR>\n" );
document.write( "One wire has a cross-sectional area of 1,250 cmil and a resistance of 7 ohms. A second piece of wire, identical except for cross-sectional area, has a resistance of 10 ohms. Determine what the cross-sectional area of this second wire is. (Cross-sectional area and resistance are inversely proportional.) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #223517 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=223517\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> One wire has a cross-sectional area of 1,250 cmil and a resistance of 7 ohms.<BR>\n" );
document.write( " A second piece of wire, identical except for cross-sectional area, has a resistance of 10 ohms.<BR>\n" );
document.write( " Determine what the cross-sectional area of this second wire is. <BR>\n" );
document.write( "(Cross-sectional area and resistance are inversely proportional.)<BR>\n" );
document.write( ":<BR>\n" );
document.write( "let x = cross sectional area of 10 ohm wire<BR>\n" );
document.write( ":<BR>\n" );
document.write( "An inverse, ratio equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F1250 ALIGN=MIDDLE  ALT=\"x%2F1250\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2F10 ALIGN=MIDDLE  ALT=\"7%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Cross multiply<BR>\n" );
document.write( "10x = 7*1250<BR>\n" );
document.write( "10x = 8750<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8750%2F10 ALIGN=MIDDLE  ALT=\"8750%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = 875 cmil cross sectional area </SPAN>\n" );
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