document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=549594>Question 549594</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The ratio between the acceleration rates of two automobiles is 4 to 3. The car with the faster rate can go from 0 km/h to 80 km/h in 9 seconds. How long will it take the slower car to go from 0 km/h to 80 km/h? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #357898 by </B><A HREF=/tutors/aboutme.mpl?userid=mathie123><B>mathie123(224)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mathie123><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=357898\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Okay let's see what the ratio really means.\r<BR>\n" );
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document.write( "for every 4 km/h that the fast car accelerates, the slower car only accelerates 3 km/h.  \r<BR>\n" );
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document.write( "Looking at the fast car:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=80%2F4=20 ALIGN=MIDDLE  ALT=\"80%2F4=20\"   DISABLED_style= \"max-width:90%; height:auto;\" >   So one \"unit\" in our ratio is 20 km/h.  So for the fast car to do 4 units (80 km), the slower car only accelerates up to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2A20=60+km%2Fh ALIGN=MIDDLE  ALT=\"3%2A20=60+km%2Fh\"   DISABLED_style= \"max-width:90%; height:auto;\" > in 9 seconds.  \r<BR>\n" );
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document.write( "Now, if it took the slow car 9 seconds to get up to 60 km/h, this means it took him 3 seconds to accerlerate 20 km/h.  This means that it will take him another 3 seconds on top of the 9 seconds (since 60+20=80).  So it will take the slower car 9+3=12 seconds to do the same amount of acceleration.   \r<BR>\n" );
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document.write( "I hope this helps a bit.. <BR>\n" );
document.write( "Let me know if you are still unsure!:)  </SPAN>\n" );
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