document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=191642>Question 191642</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Andrea can rake her Dad's yard in 45 minutes. Andrea's brother Bradford rakes one and one-half times faster than Andrea. How long would it take them to rake their Dad's yard together? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #143815 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=143815\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Andrea can rake her Dad's yard in 45 minutes. Andrea's brother Bradford rakes one and one-half times faster than Andrea. How long would it take them to rake their Dad's yard together?<BR>\n" );
document.write( "--------------------------<BR>\n" );
document.write( "1.5 times faster is 2.5 times as fast, not 1.5 times as fast.<BR>\n" );
document.write( "So Bradford can rake the yard in 45/2.5 minutes, or 18 minutes, alone.<BR>\n" );
document.write( "Right?  If not, is \"1 times faster\" the same speed?  If it's the same speed, then why say \"faster?\"<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "The time working together is (using a math shortcut)<BR>\n" );
document.write( "45*18/(45+18)<BR>\n" );
document.write( "= 90/7 minutes, or apx 12.86 minutes.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );