document.write( "Question 1043480: Two search-and-rescue teams leave base at the same time looking for a lost boy. The rst team,on foot, heads north at 2Km/h. and the other, on horseback heads south at 4Km/h. How longwill it take them to search a distance of 21Km between them? \n" ); document.write( "
Algebra.Com's Answer #658684 by josmiceli(19441)\"\" \"About 
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Add their rates
\n" ); document.write( "Let \"+t+\" = time in hrs
\n" ); document.write( "\"+21+=+%28+2+%2B+4+%29%2At+\"
\n" ); document.write( "\"+21+=+6t+\"
\n" ); document.write( "\"+t+=+3.5+\"
\n" ); document.write( "It will take them 3.5 hrs to be 21 km apart
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