SOLUTION: A train leaves Little Rock, Arkansas, and travels north at 90 kilometers per hour. Another train leaves at the same time and travels south at 85 kilometers per hour. How long will

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: A train leaves Little Rock, Arkansas, and travels north at 90 kilometers per hour. Another train leaves at the same time and travels south at 85 kilometers per hour. How long will       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 942946: A train leaves Little Rock, Arkansas, and travels north at 90 kilometers per hour. Another train leaves at the same time and travels south at 85 kilometers per hour. How long will it take before they are 700 kilometers apart?

Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
Since the two trains are heading in opposite directions, they are separating at 90km/hr+85km/hr=175 km hr. 700 km/175 km/hr= 4 hrs. The trains will be 700 km apart in 4 hours.