SOLUTION: A train leaves Little Rock, Arkansas, and travels north at 80 kilometers per hour. Another train leaves at the same time and travels south at 75 kilometers per hour. How long with
Algebra ->
Customizable Word Problem Solvers
-> Travel
-> SOLUTION: A train leaves Little Rock, Arkansas, and travels north at 80 kilometers per hour. Another train leaves at the same time and travels south at 75 kilometers per hour. How long with
Log On
Question 909259: A train leaves Little Rock, Arkansas, and travels north at 80 kilometers per hour. Another train leaves at the same time and travels south at 75 kilometers per hour. How long with it take before they are 310 kilometers apart? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! A train leaves Little Rock, Arkansas, and travels north at 80 kilometers per hour. Another train leaves at the same time and travels south at 75 kilometers per hour. How long with it take before they are 310 kilometers apart?
-------------------
Going is opposite directions, the speeds are added.
---
d = r*t
t = d/r
