Make sure that you change the units when necessary.
For example, if the rate is given in miles per hour and the time is given in minutes then change the units appropriately.
Now, we know that the distance to the gift store and the distance back from the gift store is the same. Or you could view it as 3/4 times 8 times 1, is going to be-- well, it's going to be 24 over 4. That's going to be 24 over 4 which is equal to-- did I get it?
So that's why I just said that the total distance is just going to be two times the distance to the gift store. So it's going to take her-- actually, she went there much slower than she came back. So it's going to be 3/4 hours is the time times an average speed of 8 miles per hour.
It would be helpful to use a table to organize the information for distance problems.
A table helps you to think about one number at a time instead being confused by the question.
It's the same as the distance to the gift store.
Actually, let me write that in the same green color since I'm writing all the times in green color.
The rate of the first car is 50 mph and the rate of the second car is 60 mph. At am the first train traveled East at the rate of 80 mph.
How long will it take for the distance between the two cars to be 30 miles? The first train traveled North at the rate of 80 mph and the second train traveled South at the rate of 100 mph. At am, the second train traveled West at the rate of 100 mph.