Sally travels by car from one city to another. She drives for 20.0 min at 84.0 km/h, 55.0 min at 40.0 km/h, and 23.0 min at 77.0 km/h, and she spends 11.0 min eating lunch and buying gas. Determine the average speed for the trip.
"assignmentexpert.com" is professional group of people in Math subjects! They did assignments in very high level of mathematical modelling in the best quality. Thanks a lot
Comments