document.write( "Question 514809: A jet airliner flies at 300 mph for the first half hour and last half hour of a flight. The rest of the time it flies at 600 mph. How long does it take to fly a distance of 2700 miles? \n" ); document.write( "
Algebra.Com's Answer #343753 by ankor@dixie-net.com(22740)\"\" \"About 
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A jet airliner flies at 300 mph for the first half hour and last half hour of a flight.
\n" ); document.write( " The rest of the time it flies at 600 mph.
\n" ); document.write( " How long does it take to fly a distance of 2700 miles?
\n" ); document.write( ":
\n" ); document.write( "Write a distance equation; dist = speed * time
\n" ); document.write( ".5(300) + t(600) + .5(300) = 2700
\n" ); document.write( "150 + 600t + 150 = 2700
\n" ); document.write( "600t + 300 = 2700
\n" ); document.write( "600t = 2700 - 300
\n" ); document.write( "600t = 2400
\n" ); document.write( "t = 2400/600
\n" ); document.write( "t = 4 hrs at 600 mph
\n" ); document.write( ":
\n" ); document.write( "Total time: .5 + 4 + .5 = 5 hrs \n" ); document.write( "
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