document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=105583>Question 105583</A>: <I><SPAN STYLE=\"word-break: break-all;\"> brooke walks 2 km/hr slower than her older sister Adrianna.  If Brooke can walk 12 km in the same amount of time that Adrianne can walk 18 km, find their speeds </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #77089 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=77089\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> brooke walks 2 km/hr slower than her older sister Adrianna. If Brooke can walk 12 km in the same amount of time that Adrianne can walk 18 km, find their speeds.<BR>\n" );
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document.write( "Let x = walking speed of B<BR>\n" );
document.write( "Then<BR>\n" );
document.write( "(x+2) = walking speed of A<BR>\n" );
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document.write( "Write a time equation: Time = distance/speed<BR>\n" );
document.write( "A's time = B's time<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18%2F%28%28x%2B2%29%29 ALIGN=MIDDLE  ALT=\"18%2F%28%28x%2B2%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12%2Fx ALIGN=MIDDLE  ALT=\"12%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Cross multiply:<BR>\n" );
document.write( "18x = 12(x+2)<BR>\n" );
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document.write( "18x = 12x + 24<BR>\n" );
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document.write( "18x - 12x = 24<BR>\n" );
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document.write( "6x = 24<BR>\n" );
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document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24%2F6 ALIGN=MIDDLE  ALT=\"24%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = 4 km/h is B's speed<BR>\n" );
document.write( "then<BR>\n" );
document.write( "4 + 2 = 6 km/h is A's speed<BR>\n" );
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document.write( "Check solutions by finding if they are equal times<BR>\n" );
document.write( "18/6 = 3 hr<BR>\n" );
document.write( "12/4 = 3 hr; confirms our solutions\r<BR>\n" );
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document.write( ": </SPAN>\n" );
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