document.write( "Question 362914: Jeff starts driving at 55 miles per hour from the same point that lauren starts driving at 60 miles per hour. They drive in opposite directions, and Lauren has a half-hour head start. How long will they be able to talk on their cell phones that have a 280-mile range? \n" ); document.write( "
Algebra.Com's Answer #258757 by mananth(16946)\"\" \"About 
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Jeff speed = 55mph
\n" ); document.write( "lauren speed =60 mph
\n" ); document.write( "...
\n" ); document.write( "they are moving away from each other
\n" ); document.write( "so effective speed = 60+55 = 115 mph
\n" ); document.write( "range of mobile = 280 miles
\n" ); document.write( "...
\n" ); document.write( "t= distance/speed
\n" ); document.write( "t=280/115
\n" ); document.write( "t = 2.4 hours they can be in contact on their cell
\n" ); document.write( "...
\n" ); document.write( "m.ananth@hotmail.ca
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