document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=350292>Question 350292</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An aircraft carrier made a trip to Guam and back. The trip there took three hours and the trip back took four hours. It averaged 6 km/h on the return trip. Find the average speed of the trip there. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #250475 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=250475\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
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document.write( "I assume you are the student who sent the \"Carrier to Guam\" problem,<BR>\n" );
document.write( " the only way I can contact you is by editing this problem;<BR>\n" );
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document.write( "A submarine left Hawaii two hours before an aircraft carrier.<BR>\n" );
document.write( " The vessels traveled in opposite directions.<BR>\n" );
document.write( " The aircraft carrier traveled at 25 mph for nine hours.<BR>\n" );
document.write( " After this time the vessels were 280 miles apart.<BR>\n" );
document.write( " Find the submarine’s speed.<BR>\n" );
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document.write( "Let r = submarines speed<BR>\n" );
document.write( "Since they travel in opposite directions, their speeds are additive<BR>\n" );
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document.write( "Since the sub left 2 hrs early, it traveled for 11 hrs while the carrier traveled 9 hrs<BR>\n" );
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document.write( "Write a distance equation; dist = r*t<BR>\n" );
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document.write( "Sub dist + Carrier dist = 280<BR>\n" );
document.write( "11r + 9(25) = 280<BR>\n" );
document.write( "11r + 225 = 280<BR>\n" );
document.write( "11r = 280 - 225<BR>\n" );
document.write( "11r = 55<BR>\n" );
document.write( "r = 55/11<BR>\n" );
document.write( "r = 5 mph is the speed of the sub<BR>\n" );
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document.write( "Check this in the distance equation<BR>\n" );
document.write( "11*5 = 9*25 = 280<BR>\n" );
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document.write( "Let me know if you get this, please<BR>\n" );
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document.write( "An aircraft carrier made a trip to Guam and back.<BR>\n" );
document.write( " The trip there took three hours and the trip back took four hours.<BR>\n" );
document.write( " It averaged 6 km/h on the return trip. Find the average speed of the trip there.<BR>\n" );
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document.write( "Let s = speed to Guam<BR>\n" );
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document.write( "Write a distance equation; dist = speed * time<BR>\n" );
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document.write( "Trip there = Tip back<BR>\n" );
document.write( "3s = 6*4<BR>\n" );
document.write( "3s = 24<BR>\n" );
document.write( "s = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=24%2F3 ALIGN=MIDDLE  ALT=\"24%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "s = 8 km/hr there<BR>\n" );
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