SOLUTION: Car 1 is driving at 7 miles per hour. Car 2 is driving at 60 miles per hour. The distance between these two cars is 200 yards. How long would it take for car 1 to catch up to car

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Question 963222: Car 1 is driving at 7 miles per hour. Car 2 is driving at 60 miles per hour. The distance between these two cars is 200 yards. How long would it take for car 1 to catch up to car 2?
What is the formula for these kinds of problems? I tried everything but all the answers seem to be way out of preportion. Thanks a lot! :)
Found 2 solutions by josgarithmetic, addingup:
Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
Assuming that these two cars start from the same departure point and go in the same direction, try to draw a picture and also form a data table.

___________________speed_____________time____________distance
CAR1________________7
CAR2_______________60

Stop and think: Car 1 is ahead of car 2 at the initial time. Car 2 is closing the distance between the two cars at rate of 60-7=53 miles per hour. In other words, the two cars are approaching each other at 53 miles per hour.

Use speed in MILES per HOUR; time in HOURS, and convert the distance to be covered as MILES.


200%2Ayards%2A%283%2F1%29%28feet%2Fyards%29%2A%281%2F5280%29%28MILES%2FFOOT%29

200%2A3%2F5280 miles

20%2A3%2F528 miles

20%2F176

5%2F44 miles


Rule for uniform travel rates is RT=D for rate time distance.
T=D%2FR

T=%285%2F44%29%2F53
T=5%2F%2844%2A53%29
T=0.00214408 HOURS
but you really want this as minutes or seconds.

highlight%28%285%2F%2844%2A53%29%2960%2A60=highlight_green%287.7%29%29 SECONDS

You can go through this and generalize for any value you want as variables.
Notice I did not continue with the data table.

Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
Car 1 is driving at 7 miles per hour?? Please check, it doesn't sound right.