document.write( "Question 841802: A train leaves little rock, Arkansas, and travels north at 55 kilometers per hour. Another train leaves at same time and travels south at 80 kilometers per hour.?how long will it take before they are 540 kilometers apart? \n" ); document.write( "
Algebra.Com's Answer #507206 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi,
\n" ); document.write( "A train leaves little rock, Arkansas, and travels north at 55 kilometers per hour.
\n" ); document.write( "Another train leaves at same time and travels south at 80 kilometers per hour.?
\n" ); document.write( "how long \"highlight_green%28t%29\" will it take before they are 540 kilometers apart?
\n" ); document.write( "D = r\"highlight_green%28t%29\"
\n" ); document.write( " 55kmph\"highlight_green%28t%29\" + 80kmph\"highlight_green%28t%29\" = 540km
\n" ); document.write( " t(55kmph + 80kmph) = 540km
\n" ); document.write( " t = \"%28540%2F135%29+hr+=+%284hr%29\" \n" ); document.write( "
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