document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=991450>Question 991450</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the number d of donations a charity receives varies directly with th number r of requests it mails. the charity sends out 9500 request and receives 420 donations. write an equation that relates r and d ? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #611411 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=611411\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi there,<BR>\n" );
document.write( "the number d of donations a charity receives <BR>\n" );
document.write( "varies directly with the number r of requests it mails.<BR>\n" );
document.write( "d = kr<BR>\n" );
document.write( "Find 'k' (the constant of variation)<BR>\n" );
document.write( "420 = k 9500<BR>\n" );
document.write( "k = 420/9500<BR>\n" );
document.write( "k = 0.044 (3 decimal places)<BR>\n" );
document.write( "Formula:-<BR>\n" );
document.write( "d = 0.044r<BR>\n" );
document.write( "Hope this helps :-) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );