document.write( "Question 597367: A container ship left Hawaii and travelled north at an average speed of 15 km/h. A cruise ship 1.9 hours later and traveled in the opposite direction with an average speed of 12.6 km/h. Find the number of hoours the cruise ship needs to travel before the vessels are 125.1 km apart. \n" ); document.write( "
Algebra.Com's Answer #378158 by josmiceli(19441)\"\" \"About 
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First find how many km head start the container
\n" ); document.write( "ship has.
\n" ); document.write( "\"d%5B1%5D+=++15%2A1.9+=+28.5+\" km
\n" ); document.write( "Let \"+t+\" = the number of hours the cruise ship needs
\n" ); document.write( "to travel before the vessels are 125.1 km apart.
\n" ); document.write( "The container ship also travels for time \"+t+\"
\n" ); document.write( "after it's head start
\n" ); document.write( "\"+d%5B2%5D+=+12.6t+\" km
\n" ); document.write( "\"+d%5B3%5D+=+15t+\" km
\n" ); document.write( "--------------
\n" ); document.write( "\"+d%5B1%5D+%2B+d%5B2%5D+%2B+d%5B3%5D+=+125.1+\" km
\n" ); document.write( "\"+28.5+%2B+12.6t+%2B+15t+=+125.1+\"
\n" ); document.write( "\"+12.6t+%2B+15t+=+125.1+-+28.5+\"
\n" ); document.write( "\"+27.6t+=+96.6+\"
\n" ); document.write( "\"+t+=+3.5+\"
\n" ); document.write( "The cruise ship travels for 3.5 hours until the
\n" ); document.write( "vessels are 125.1 km apart
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