SOLUTION: don left Vancouver and drove towards hope BC at a speed of 120km/h. Brad left hope at the same time and drove towards vancouver at a speed of 90km/h. if hope is 122km from vancouve

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: don left Vancouver and drove towards hope BC at a speed of 120km/h. Brad left hope at the same time and drove towards vancouver at a speed of 90km/h. if hope is 122km from vancouve      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 1059914: don left Vancouver and drove towards hope BC at a speed of 120km/h. Brad left hope at the same time and drove towards vancouver at a speed of 90km/h. if hope is 122km from vancouver how far had they each driven when they passed each other on the highway?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
You can think of this as one of them standing still and
the other one traveling at the sum of their speeds
Use this to find the time when they meet
+122+=+%28+120+%2B+90+%29%2At+
+t+=+122%2F210+
+t+=+61%2F105+
--------------------
Don's distance traveled:
+d%5B1%5D+=+120%2A%2861%2F105%29+
+d%5B1%5D+=+69.714+ km
Brad's distance traveled:
+d%5B2%5D+=+90%2A%2861%2F105%29+
+d%5B2%5D+=+52.286+ km
---------------------------
check:
+d%5B1%5D+%2B+d%5B2%5D+=+69.714+%2B+52.286+
+d%5B1%5D+%2B+d%5B2%5D+=+122+
OK
Feel free to get another opinion, too