document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=577789>Question 577789</A>: <I><SPAN STYLE=\"word-break: break-all;\"> andy's average driving speed for a 4-hour trip was 45 miles per hour. During the first 3 hours he drove 40 miles per hour. What was his average speed for the last hour of his trip? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #370310 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=370310\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> andy's average driving speed for a 4-hour trip was 45 miles per hour. During the first 3 hours he drove 40 miles per hour. What was his average speed for the last hour of his trip?<BR>\n" );
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document.write( "4*45 = 180 miles total<BR>\n" );
document.write( "3*40 = 120 miles in 3 hours<BR>\n" );
document.write( "That leaves 60 miles in 1 hour<BR>\n" );
document.write( "--> 60 mi/hr<BR>\n" );
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document.write( "Finding avg speeds is not as simple as other averages.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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