document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=327498>Question 327498</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If 7 ballerinas dance for 8 hours and lose a total of 20 pounds,<BR>\n" );
document.write( "how many more ballerinas dancing would it take to lose a total<BR>\n" );
document.write( "of 20 pounds in only 4 hours if the new dancers lost weight only<BR>\n" );
document.write( "half as fast as the original 7 ? <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 #234574 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=234574\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If 7 ballerinas dance for 8 hours and lose a total of 20 pounds,<BR>\n" );
document.write( "Rate at which they lost weight was 20/8 = 5/2 = 2.5 lbs per hour or 7<BR>\n" );
document.write( "2.5/7 = 0.3571 lbs per hr. per ballerina<BR>\n" );
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document.write( "Note: rate = total loss/[total hours*# of ballarina)<BR>\n" );
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document.write( "How many more ballerinas dancing would it take to lose a total<BR>\n" );
document.write( "of 20 pounds in only 4 hours if the new dancers lost weight only<BR>\n" );
document.write( "half as fast as the original 7 ?<BR>\n" );
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document.write( "Let Let \"x\" be the total # of ballarinas required.<BR>\n" );
document.write( "Equations: <BR>\n" );
document.write( "(0.3571/2) = 20/[4x]<BR>\n" );
document.write( " 0.1786 = 5/x<BR>\n" );
document.write( "x = 5/0.1786<BR>\n" );
document.write( "x = 28 ballarinas would be required<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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