SOLUTION: A car leaves a town at 60 miles per hour. How long will it take a second car, traveling at 70 miles per hour, to catch the first car if it leaves 1 hour later?

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: A car leaves a town at 60 miles per hour. How long will it take a second car, traveling at 70 miles per hour, to catch the first car if it leaves 1 hour later?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 398964: A car leaves a town at 60 miles per hour. How long will it take a second car, traveling at 70 miles per hour, to catch the first car if it leaves 1 hour later?
Found 2 solutions by ewatrrr, Alan3354:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

second car leaves 1 hour later

Let x and (x-1hr)represent the times traveled by the first and second car respectively 

Question states*** (Note: Distance traveled will be the same.  D = r*t

 60mph(x) = 70mph(x-1)

solving for x

     70mph = 10mph(x)

       x = 7hr, time traveled by first car.

It will take the second car 6 hrs to catch it

CHECKING our Answer***

 60mph*7hr = 70mph*6hr

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
The 1st car is 60 miles away (60 mph * 1 hr)
The 2nd car gains on it at 10 mph (70 - 60)
60/10 = 6 hours