Answer: 0.83 hrs; 2 hours
Given:
Aretha’s trip to the store = 1 1/6 hours.
Aretha’s return trip = 5/7 (1 1/6) hours
To find Aretha’s return trip in hours
Let X= Aretha’s return trip in hours
X=5/7(1 1/6)
X= 5/7(7/6)
X= 0.714286(1.166667)
X= 0.833333
X=.83
To find Aretha’s total driving time, add 1.17 and 0.83 = 2 hours