document.write( "Question 626239: if a plane traveling 300 mph is 350 ahead of a second plane traveling 400 mph, how long will it take for the second plane to catch the first one \n" ); document.write( "
Algebra.Com's Answer #394047 by Alan3354(69443)\"\" \"About 
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if a plane traveling 300 mph is 350 ahead of a second plane traveling 400 mph, how long will it take for the second plane to catch the first one
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\n" ); document.write( "If it's 350 miles ahead:
\n" ); document.write( "The 2nd plane is gaining on the 1st at 100 mi/hr (400 - 300)
\n" ); document.write( "350/100 = 3.5 hours
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