document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=986987>Question 986987</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You walk at an average of 3.2 miles per hour on the way to school, and at an average of 4 miles per hour on the way home. The total walking time is 18 minutes. How far away is the school? Round your answer to the nearest hundredth of a mile. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #607966 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=607966\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You walk at an average of 3.2 miles per hour on the way to school, and at an average of 4 miles per hour on the way home.<BR>\n" );
document.write( "The total walking time is 18 minutes. <BR>\n" );
document.write( " How far away is the school?<BR>\n" );
document.write( " Round your answer to the nearest hundredth of a mile.<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Since we are dealing in mph, change 18 min to hrs; 18/60 .3 hrs<BR>\n" );
document.write( "let d = the one way distance<BR>\n" );
document.write( "write time equation; time = dist/speed<BR>\n" );
document.write( "To time + return time = .3 hrs<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F3.2 ALIGN=MIDDLE  ALT=\"d%2F3.2\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F4 ALIGN=MIDDLE  ALT=\"d%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" > = .3<BR>\n" );
document.write( "clear denominators, multiply equation by 32, cancel the denominators<BR>\n" );
document.write( "10d + 8d = .3(32)<BR>\n" );
document.write( "18d = 9.6<BR>\n" );
document.write( "d = 9.6/18<BR>\n" );
document.write( "d = .53 mi to the school<BR>\n" );
document.write( ":<BR>\n" );
document.write( ";<BR>\n" );
document.write( "Confirm this, find the actual time each way<BR>\n" );
document.write( ".533/3.2 = .167 hrs<BR>\n" );
document.write( ".533/4.0 = .133 hrs<BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "total time: .3 hrs </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );