document.write( "Question 230004: An airplane flying at 500 miles an hour leaves Minneapolis. One-half hour later, a second airplane leaves Minneapolis flying in the same direction at rate of 600 miles per hour. How long will it take the second airplane to overtake the first? \n" ); document.write( "
Algebra.Com's Answer #170413 by Alan3354(69443)\"\" \"About 
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An airplane flying at 500 miles an hour leaves Minneapolis. One-half hour later, a second airplane leaves Minneapolis flying in the same direction at rate of 600 miles per hour. How long will it take the second airplane to overtake the first?
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\n" ); document.write( "There's a hard way to do these, but take the easy way:
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\n" ); document.write( "In 1/2 hour, the 1st plane is 250 miles away (500*0.5)
\n" ); document.write( "The 2nd plane gains in it at 100 mph (600-500)
\n" ); document.write( "250/100 = 2.5 hours.
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