document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=197693>Question 197693</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sailboat speed. The sail area-displacement ratio S provides<BR>\n" );
document.write( "a measure of the sail power available to drive a<BR>\n" );
document.write( "boat. For a boat with a displacement of d pounds and a<BR>\n" );
document.write( "sail area of A square feet S is determined by the formula<BR>\n" );
document.write( "S = 16Ad 2/3.<BR>\n" );
document.write( "a) Find S to the nearest tenth for the Tartan 4100, which<BR>\n" );
document.write( "has a sail area of 810 square feet and a displacement of<BR>\n" );
document.write( "23,245 pounds.<BR>\n" );
document.write( "b) Write d in terms of A and S. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #148263 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=148263\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Sailboat speed. The sail area-displacement ratio S provides<BR>\n" );
document.write( "a measure of the sail power available to drive a<BR>\n" );
document.write( "boat. For a boat with a displacement of d pounds and a<BR>\n" );
document.write( "sail area of A square feet S is determined by the formula<BR>\n" );
document.write( "S = 16Ad 2/3.<BR>\n" );
document.write( "I think this formula is wrong, it should be<BR>\n" );
document.write( "S = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2816A%29%2F%28d%5E%282%2F3%29%29 ALIGN=MIDDLE  ALT=\"%2816A%29%2F%28d%5E%282%2F3%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ";<BR>\n" );
document.write( "a) Find S to the nearest tenth for the Tartan 4100, which<BR>\n" );
document.write( "has a sail area of 810 square feet and a displacement of<BR>\n" );
document.write( "23,245 pounds.<BR>\n" );
document.write( "S = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2816%2A810%29%2F%2823245%5E%282%2F3%29%29 ALIGN=MIDDLE  ALT=\"%2816%2A810%29%2F%2823245%5E%282%2F3%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "S = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12960%2F814.5 ALIGN=MIDDLE  ALT=\"12960%2F814.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "S = 15.9 <BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "b) Write d in terms of A and S.<BR>\n" );
document.write( "S = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2816A%29%2F%28d%5E%282%2F3%29%29 ALIGN=MIDDLE  ALT=\"%2816A%29%2F%28d%5E%282%2F3%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Cross multiply<BR>\n" );
document.write( "S*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5E%282%2F3%29 ALIGN=MIDDLE  ALT=\"d%5E%282%2F3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 16A<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%5E%282%2F3%29 ALIGN=MIDDLE  ALT=\"d%5E%282%2F3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2816A%29%2FS ALIGN=MIDDLE  ALT=\"%2816A%29%2FS\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "d = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%2816A%29%2FS%29%5E%283%2F2%29 ALIGN=MIDDLE  ALT=\"%28%2816A%29%2FS%29%5E%283%2F2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );