John can jog twice as fast as he can walk. He was able to jog the first 5 miles to his grandmother's house, but then he tired and walked the remaining 3 miles. If the total trip took 1.1 hours, then what was his average jogging speed?
\(\text{Average Speed}=\frac{\text{Total Distance}}{\text{Total Time}}\)
5 + 3 = 8 miles = total distance
Total time = 1.1
8/1.1 = your answer