document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=115659>Question 115659</A>: <I><SPAN STYLE=\"word-break: break-all;\"> During rush hour Adrianna can drive 20 miles using side roads in the same time that it takes to travel 15 miles on the freeway.  If Arianna's rate on the side roads is 10mph fraster than her rate on the freeway, find her rate on the side roads? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #84181 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=84181\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> During rush hour, Adriana can drive 20 miles using the side roads in the same time that it takes to travel 15 miles on the freeway. If Adriana''s rate on the side roads is 10 mph faster than her rate on the freeway, find her rate on the side roads.<BR>\n" );
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document.write( "Let s = speed on the side road. <BR>\n" );
document.write( "Then<BR>\n" );
document.write( "(s-10) = speed on the freeway<BR>\n" );
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document.write( "Write a time equation, Time = Distance/Speed<BR>\n" );
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document.write( "Side road time = Freeway time<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=20%2Fs%29 ALIGN=MIDDLE  ALT=\"20%2Fs%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15%2F%28%28s-10%29%29 ALIGN=MIDDLE  ALT=\"15%2F%28%28s-10%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Cross multiply:<BR>\n" );
document.write( "20(s-10) = 15s<BR>\n" );
document.write( "20s - 200 = 15s<BR>\n" );
document.write( "20s - 15s = +200<BR>\n" );
document.write( "5s = 200<BR>\n" );
document.write( "s = 40 on the side road<BR>\n" );
document.write( "40 - 10 = 30 mph on the freeway<BR>\n" );
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document.write( "Check the times on both speeds, 40 mph and 30 mph:<BR>\n" );
document.write( "20/40 = .5 hr<BR>\n" );
document.write( "15/30 = .5 hrs; confirms our solution <BR>\n" );
document.write( " </SPAN>\n" );
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