1 4 3 h 120 mi = 4 7 120 mi / h = ( 120 × 7 4 ) m p h = 7 480 m p h = 68 7 4 m p h ≈ 68.5 m p h
The speed of the truck is approximately 68.57 miles per hour, calculated by dividing the distance of 120 miles by the time of 1 3/4 hours. The time is converted to an improper fraction for the calculation. Using the speed formula, we find that the truck travels at that speed.
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