document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=258710>Question 258710</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 55 mph. She returned home 50 hours after leaving.<BR>\n" );
document.write( "We have to determine how many miles x is it from City A to City B.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #190752 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=190752\">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 55 mph. She returned home 50 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" );
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document.write( "Obviously, we are only interested in her actual travel time<BR>\n" );
document.write( "50 - 20 = 30 hrs total travel time<BR>\n" );
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document.write( "x = the miles between city A and B<BR>\n" );
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document.write( "Write a time equation; time = dist/speed<BR>\n" );
document.write( "Time there + time back = 30 hrs<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%2F55 ALIGN=MIDDLE  ALT=\"x%2F55\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 30<BR>\n" );
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document.write( "Multiply by a common denominator, 385 with do the job<BR>\n" );
document.write( "385*<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;\" > + 385*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2F55 ALIGN=MIDDLE  ALT=\"x%2F55\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 385(30)<BR>\n" );
document.write( ";<BR>\n" );
document.write( "Cancel the denominators and you have:<BR>\n" );
document.write( "11x + 7x = 11550<BR>\n" );
document.write( ";<BR>\n" );
document.write( "18x = 11550<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=11550%2F18 ALIGN=MIDDLE  ALT=\"11550%2F18\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = 641<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2F3 ALIGN=MIDDLE  ALT=\"2%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" > miles between cities<BR>\n" );
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document.write( "Check this on calc; find the total time<BR>\n" );
document.write( "641.67/35 + 641.67/55<BR>\n" );
document.write( "18.33 + 11.67 = 30 hrs, confirms our solution<BR>\n" );
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