document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=505639>Question 505639</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is your average velocity if you drive a distance of 464 km at a speed of 48 km/h, then the same distance at a speed of 68 km/h? Answer in units of 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 #339956 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=339956\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What is your average velocity if you drive a distance of 464 km at a speed of 48 km/h, then the same distance at a speed of 68 km/h? Answer in units of km/h.<BR>\n" );
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document.write( "Let a = the average velocity<BR>\n" );
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document.write( "Write a time equation, time = dist/speed<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=464%2F48 ALIGN=MIDDLE  ALT=\"464%2F48\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=464%2F68 ALIGN=MIDDLE  ALT=\"464%2F68\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%28464%29%2Fa ALIGN=MIDDLE  ALT=\"2%28464%29%2Fa\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=464%2F48 ALIGN=MIDDLE  ALT=\"464%2F48\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=464%2F68 ALIGN=MIDDLE  ALT=\"464%2F68\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=928%2Fa ALIGN=MIDDLE  ALT=\"928%2Fa\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Find the LCM of 48 and 68<BR>\n" );
document.write( "48: 2*2*2*2*3<BR>\n" );
document.write( "68: 2*2*17<BR>\n" );
document.write( "LCM 2^4 * 3 * 17 = 816<BR>\n" );
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document.write( "Multiply by 272a<BR>\n" );
document.write( "816a*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=464%2F48 ALIGN=MIDDLE  ALT=\"464%2F48\"   DISABLED_style= \"max-width:90%; height:auto;\" > + 816a*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=464%2F68 ALIGN=MIDDLE  ALT=\"464%2F68\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 816a*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=928%2Fa ALIGN=MIDDLE  ALT=\"928%2Fa\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Cancel the denominators and you have<BR>\n" );
document.write( "17a(464) + 12a(464) = 816(928)<BR>\n" );
document.write( "7888a + 5568a = 757248<BR>\n" );
document.write( "13456a = 757248<BR>\n" );
document.write( "a = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=757248%2F13456 ALIGN=MIDDLE  ALT=\"757248%2F13456\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "a = 56.276 km/hr is the average velocity for the trip<BR>\n" );
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document.write( "You can confirm this by finding if the actual times add up<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=464%2F48 ALIGN=MIDDLE  ALT=\"464%2F48\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=464%2F68 ALIGN=MIDDLE  ALT=\"464%2F68\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=928%2F56.276 ALIGN=MIDDLE  ALT=\"928%2F56.276\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
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