SOLUTION: Jaypee and Vic started driving from the same point going in opposite directions. Their rates are 60 kph and 70 kph, respectively. After how many hours will they be 650 kilometers a

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: Jaypee and Vic started driving from the same point going in opposite directions. Their rates are 60 kph and 70 kph, respectively. After how many hours will they be 650 kilometers a      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 772961: Jaypee and Vic started driving from the same point going in opposite directions. Their rates are 60 kph and 70 kph, respectively. After how many hours will they be 650 kilometers apart?
Answer by josgarithmetic(39613) About Me  (Show Source):
You can put this solution on YOUR website!
This is a very common type of uniform rates question. Let's try it this way:

Let x = how many hours until specified distance sum
J = rate for Jaypee, 60 kph
V = rate for Vic, 70 kph
D = the total distance 650 kms, between them at time x hours

PERSON_________rate_________time___________distance
Jaypee_________J____________x______________Jx
Vic____________V____________x______________Vx
TOTAL______________________________________D

Use the total of the sum of distances, and make the equation:
Jx%2BVx=D
Solve for x,
%28J%2BV%29x=D
highlight%28x=D%2F%28J%2BV%29%29