document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=835436>Question 835436</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You drove for 1 hour at 50 mph with what average speed would you have to drive for the next 3/4 of an hour for your average for the whole trip to be 56 mph </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #503524 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=503524\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You drove for 1 hour at 50 mph with what average speed would you have to drive for the next 3/4 of an hour for your average for the whole trip to be 56 mph<BR>\n" );
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document.write( "average = total distance/total time<BR>\n" );
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document.write( "56 = (1*50 + (3/4)r)/(1+(3/4))<BR>\n" );
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document.write( "56 = (50 + (3/4)r)/(7/4)<BR>\n" );
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document.write( "50 + (3/4)r) = (7/4)56 = 98<BR>\n" );
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document.write( "(3/4)r = 48<BR>\n" );
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document.write( "r = (4/3)(48)<BR>\n" );
document.write( "r = 64 mph<BR>\n" );
document.write( "=================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "================== </SPAN>\n" );
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