SOLUTION: 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. Ho

Algebra ->  Equations -> SOLUTION: 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. Ho      Log On


   



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?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Add their rates
Let +t+ = time in hrs
+21+=+%28+2+%2B+4+%29%2At+
+21+=+6t+
+t+=+3.5+
It will take them 3.5 hrs to be 21 km apart