document.write( "Question 393684: Sarah leaves Seattle for New York in her car, averaging 80 mph across open country. One hour later a plane leaves Seattle for new york following the same route and flying 400 mph. how long will it be before the plane overtakes the car?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #279370 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Sarah leaves Seattle for New York in her car, averaging 80 mph across open country. One hour later a plane leaves Seattle for new york following the same route and flying 400 mph. how long will it be before the plane overtakes the car?
\n" ); document.write( "----------------
\n" ); document.write( "Sarah is 80 miles ahead (80 * 1)
\n" ); document.write( "The plane gains on her at 320 mph (400 - 80)
\n" ); document.write( "80/320 = 1/4 hour
\n" ); document.write( "-------------------
\n" ); document.write( "
\n" );