SOLUTION: If you drove to Austin at 70 miles per hour and returned at 50 miles per hour.what is the distance driven to Austin if total driving time was 7.2 hours

Question 707782: If you drove to Austin at 70 miles per hour and returned at 50 miles per hour.what is the distance driven to Austin if total driving time was 7.2 hours
Found 2 solutions by nshah11, Alan3354:
Answer by nshah11(47) (Show Source): You can put this solution on YOUR website!
Assume the distance to Austin is d miles.
d*(1/70 + 1/50) = 36/5
d = (36/5)*(50*70/120) = 210 miles
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
If you drove to Austin at 70 miles per hour and returned at 50 miles per hour.what is the distance driven to Austin if total driving time was 7.2 hours
-----------
Avg speed for the round trip = 2*70*50/(70+50)
= 7000/120
= 175/3 mi/hr
------------
d = r*t = (175/3)*7.2
d = 420 miles RT
one-way = 210 miles

RELATED QUESTIONS
If you drove to Austin at 70 miles per hour and returned at 50 miles per hour. What is... (answered by scott8148)
Train A is leaving Austin to Houston at 82.1 miles per hour.Tran B leaves to Austin at... (answered by mananth)
The Jones familt drove to Disneyland at 50 miles per hour and returned on the same route... (answered by funmath)
Sam drove to work at an average speed of 50 miles per hour from her house and then... (answered by Alan3354)
Dan needs to get to Austin as fast as possible. The train leaves at 3:00 pm and can... (answered by rfer)
Doug and Austin both run on their junior high school cross country team. Doug was not... (answered by josmiceli)
The jones family drove to disneyland at 5 miles per hour and returned on the same route... (answered by robertb)
A scale for a map states that 2 inches equals 25 miles. John measures the distance from... (answered by josmiceli)
The Jones family drove to Disneyland at 50 miles per hour and returned on the same route... (answered by Nate,tom_from_nam)