document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=344790>Question 344790</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Wilma drove at an average speed of 35 mph from her home in City A to visit her sister in City B.<BR>\n" );
document.write( "She stayed in City B 20 hours, and on the trip back averaged 60 mph. She returned home 41 hours after leaving.<BR>\n" );
document.write( "We have to determine how many miles x is it from City A to City B.\r<BR>\n" );
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document.write( "1. In terms of x, express Wilma's driving time from A to B  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #246774 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=246774\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Wilma drove at an average speed of 35 mph from her home in City A to visit her sister in City B.<BR>\n" );
document.write( "She stayed in City B 20 hours, and on the trip back averaged 60 mph. She returned home 41 hours after leaving.<BR>\n" );
document.write( "We have to determine how many miles x is it from City A to City B.<BR>\n" );
document.write( "1. In terms of x, express Wilma's driving time from A to B<BR>\n" );
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document.write( "We are only interested in the driving time which is: 41 - 20 = 21 hrs<BR>\n" );
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document.write( "Write a time equation:<BR>\n" );
document.write( "total drive time = time there + time back<BR>\n" );
document.write( "t(x) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F35 ALIGN=MIDDLE  ALT=\"x%2F35\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F60 ALIGN=MIDDLE  ALT=\"x%2F60\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "t(x) = 21 hrs<BR>\n" );
document.write( "Find x<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F35 ALIGN=MIDDLE  ALT=\"x%2F35\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F60 ALIGN=MIDDLE  ALT=\"x%2F60\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 21<BR>\n" );
document.write( "Multiply by 420, results<BR>\n" );
document.write( "12x + 7x = 420(21)<BR>\n" );
document.write( "19x = 8820<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8820%2F19 ALIGN=MIDDLE  ALT=\"8820%2F19\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = 464.2 mi from A to B <BR>\n" );
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document.write( "Check this find the time each way<BR>\n" );
document.write( "464.2/35 = 13.26 hrs<BR>\n" );
document.write( "464.2/60 =  7.74 hrs<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "total time: 21 hrs; confirms our solution </SPAN>\n" );
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