she was at the rate of 1 mile every 1/4 hour. how many miles did she walk?
If she was walking at a rate of 1 mile every 1/4 hour, we can convert 1/4 hour to minutes by multiplying by 60 minutes per hour:
1/4 hour * 60 minutes/hour = 15 minutes
So she was walking 1 mile every 15 minutes.
To find out how many miles she walked, we need to know the total amount of time she spent walking.