SOLUTION: Kathleen and cade williams leave simultaneously from the same point hiking in opposite directions, kathleen walking at 4 miles per hour and Cade at 5 mph. How long can they talk on

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Kathleen and cade williams leave simultaneously from the same point hiking in opposite directions, kathleen walking at 4 miles per hour and Cade at 5 mph. How long can they talk on      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 670756: Kathleen and cade williams leave simultaneously from the same point hiking in opposite directions, kathleen walking at 4 miles per hour and Cade at 5 mph. How long can they talk on their walkie-talkies if walkie-talkies have a 20-mile radius?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Kathleen and cade williams leave simultaneously from the same point hiking in opposite directions, kathleen walking at 4 miles per hour and Cade at 5 mph. How long can they talk on their walkie-talkies if walkie-talkies have a 20-mile radius?
----
They are separating at 9 mph.
-----
time = distance/rate = 20/9 = 2.22 hrs = 2hrs 13 minutes 12 seconds
---------------------------------------------------------------
Cheers,
Stan H