Jessica drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 6 hours. When Jessica drove home, there was no traffic and the trip only took 4 hours. If her average rate was 22 miles per hour faster on the trip home, how far away does Jessica live from the mountains?

Do not do any rounding.

Question

Jessica drove to the mountains last weekend. There was heavy traffic on the way there, and the trip took 6 hours. When Jessica drove home, there was no traffic and the trip only took 4 hours. If her average rate was 22 miles per hour faster on the trip home, how far away does Jessica live from the mountains?

Do not do any rounding.

anonymous · Answer

The distance each way must be equal.  d = rate times time
Let r equal rate,r=rate
6r = 4(r+22)
solve for r, then calculate distance.


R = 44..... 


Can anyone help me from here?