document.write( "Question 208207: At 1:30, an airplane leaves Tucson for Baltimore, a distance of 2240 miles. The plane flies at 280 miles per hour. A second airplane leaves Tucson at 2:15 pm and is scheduled to land in Baltimore 15 minutes before the first airplane. At what rate must the second airplane travel to arrive on schedule?
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Algebra.Com's Answer #157552 by ankor@dixie-net.com(22740)\"\" \"About 
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At 1:30 an airplane leaves Tucson for Baltimore, a distance of 2240 miles.
\n" ); document.write( " The plane flies at 280 miles per hour.
\n" ); document.write( " A second airplane leaves Tucson at 2:15 pm and is scheduled to land in Baltimore
\n" ); document.write( " 15 minutes before the first airplane.
\n" ); document.write( "At what rate must the second airplane travel to arrive on schedule?
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\n" ); document.write( "Find the travel time of the 1st airplane
\n" ); document.write( "\"2240%2F280\" = 8 hrs
\n" ); document.write( "should arrive at Baltimore in 8 hrs, at 9:30
\n" ); document.write( "therefore
\n" ); document.write( "The 2nd plane, 15 min earlier, should arrive at 9:15
\n" ); document.write( "2nd plane travel time: 9:15 - 2:15 = 7 hrs
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\n" ); document.write( "Find the speed of the 2nd plane
\n" ); document.write( "\"2240%2F7\" = 320 mph to accomplish this
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