document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=157346>Question 157346</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0136007023/algebrahomeworkh>Beginning Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Alan and Dave Schaferkotter leave from the same point driving in opposite directions, Alan driving at 55 miles per hour and Dave at 65mph. Alan has a one-hour head start. How long will they be able to talk on their car phones if the phones have a 250-mile range? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #115969 by </B><A HREF=/tutors/aboutme.mpl?userid=jojo14344><B>jojo14344(1513)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jojo14344><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=115969\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Remember:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Speed=distance%2Ftime ALIGN=MIDDLE  ALT=\"Speed=distance%2Ftime\"   DISABLED_style= \"max-width:90%; height:auto;\" > -------------> working eqn<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Alan=A=55m%2Fhr ALIGN=MIDDLE  ALT=\"Alan=A=55m%2Fhr\"   DISABLED_style= \"max-width:90%; height:auto;\" >, speed of Alan<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Dave=D=65m%2Fhr ALIGN=MIDDLE  ALT=\"Dave=D=65m%2Fhr\"   DISABLED_style= \"max-width:90%; height:auto;\" >, speed of Dave<BR>\n" );
document.write( "We have to remember Alan has a head start of 1 hour & travelled a certain distance and lets' see how far he is:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5B1%5D=%2855m%2Fhr%29%281cross%28hr%29%29=55miles ALIGN=MIDDLE  ALT=\"A%5B1%5D=%2855m%2Fhr%29%281cross%28hr%29%29=55miles\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "IN our working eqn we get: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=time=distance%2Fspeed ALIGN=MIDDLE  ALT=\"time=distance%2Fspeed\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=distance ALIGN=MIDDLE  ALT=\"distance\"   DISABLED_style= \"max-width:90%; height:auto;\" > will be the max range = 250 miles but we need to deduct <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5B1%5D ALIGN=MIDDLE  ALT=\"A%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > because we'll take the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=speed ALIGN=MIDDLE  ALT=\"speed\"   DISABLED_style= \"max-width:90%; height:auto;\" > for both.<BR>\n" );
document.write( "In just make sense to deduct because that 55 miles run, Dave was not part of it.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=d%2Fs ALIGN=MIDDLE  ALT=\"t=d%2Fs\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=%28250-55%29cross%28m%29%2F%28%2855%2B65%29%28cross%28m%29%2Fhr%29%29 ALIGN=MIDDLE  ALT=\"t=%28250-55%29cross%28m%29%2F%28%2855%2B65%29%28cross%28m%29%2Fhr%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=%28195%2F120%29hr ALIGN=MIDDLE  ALT=\"t=%28195%2F120%29hr\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=1.625hr ALIGN=MIDDLE  ALT=\"t=1.625hr\"   DISABLED_style= \"max-width:90%; height:auto;\" >= 1 hour & 37.5 minutes ------------------> This long they can talk on their car phones. FINAL ANSWER<BR>\n" );
document.write( "In doubt? Go back working eqn we get, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=%28speed%29%28time%29 ALIGN=MIDDLE  ALT=\"d=%28speed%29%28time%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "this time we have to add <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%5B1%5D ALIGN=MIDDLE  ALT=\"A%5B1%5D\"   DISABLED_style= \"max-width:90%; height:auto;\" > because the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=time ALIGN=MIDDLE  ALT=\"time\"   DISABLED_style= \"max-width:90%; height:auto;\" > we'll use we deduct it. We take speed for both and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=max ALIGN=MIDDLE  ALT=\"d=max\"   DISABLED_style= \"max-width:90%; height:auto;\" > range.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=%2855%2B65%29%28m%2Fcross%28hr%29%29%281.625cross%28hr%29%29%2B55m ALIGN=MIDDLE  ALT=\"d=%2855%2B65%29%28m%2Fcross%28hr%29%29%281.625cross%28hr%29%29%2B55m\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=250m=195m%2B55m ALIGN=MIDDLE  ALT=\"250m=195m%2B55m\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=250m=250m ALIGN=MIDDLE  ALT=\"250m=250m\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Thank you.<BR>\n" );
document.write( "Jojo<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );