document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=626129>Question 626129</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two spheres of the same density have a ratio of 4 to 9 in surface area. If the small sphere weighs 10 lb. what does the sphere weigh?\r<BR>\n" );
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document.write( "Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #394089 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=394089\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two spheres of the same density have a ratio of 4 to 9 in surface area.<BR>\n" );
document.write( " If the small sphere weighs 10 lb. what does the sphere weigh?<BR>\n" );
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document.write( "Surface area of the two spheres;<BR>\n" );
document.write( " r1= radius of the small sphere<BR>\n" );
document.write( " r2= radius of the larger sphere<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284%2Api%2Ar1%5E2%29%2F%284%2Api%2Ar2%5E2%29 ALIGN=MIDDLE  ALT=\"%284%2Api%2Ar1%5E2%29%2F%284%2Api%2Ar2%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2F9 ALIGN=MIDDLE  ALT=\"4%2F9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "cancel 4*pi<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28r1%5E2%29%2F%28r2%5E2%29 ALIGN=MIDDLE  ALT=\"%28r1%5E2%29%2F%28r2%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2F9 ALIGN=MIDDLE  ALT=\"4%2F9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28r1%29%2F%28r2%29 ALIGN=MIDDLE  ALT=\"%28r1%29%2F%28r2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%284%2F9%29 ALIGN=MIDDLE  ALT=\"sqrt%284%2F9%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "therefore<BR>\n" );
document.write( "r1 = 2<BR>\n" );
document.write( "r2 = 3<BR>\n" );
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document.write( "Vol is equiv of weight here<BR>\n" );
document.write( "let w = weight of the larger sphere<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%284%2F3%29pi%2A2%5E3%29%2F%28%284%2F3%29pi%2A3%5E3%29 ALIGN=MIDDLE  ALT=\"%28%284%2F3%29pi%2A2%5E3%29%2F%28%284%2F3%29pi%2A3%5E3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10%2Fw ALIGN=MIDDLE  ALT=\"10%2Fw\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Cancel <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%284%2F3%29pi ALIGN=MIDDLE  ALT=\"%284%2F3%29pi\"   DISABLED_style= \"max-width:90%; height:auto;\" > and you have:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%2F27 ALIGN=MIDDLE  ALT=\"8%2F27\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10%2Fw ALIGN=MIDDLE  ALT=\"10%2Fw\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "cross multiply<BR>\n" );
document.write( "8w = 27*10<BR>\n" );
document.write( "w = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=270%2F8 ALIGN=MIDDLE  ALT=\"270%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "w = 33.75, the weight of the larger sphere<BR>\n" );
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