Mathematics, 10.12.2020 16:50, catty7343

The distance between two cities is 180km. The distance was covered by a car at the rate of 50km/h, by a bus 45km/h, by a truck at 40km/h, and by a bicycle at 25km/h. How lond did each take to travel the entire distance? Are speed and time directly proportional or inversely proportional? What is the constant of variation?

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The distance between two cities is 180km. The distance was covered by a car at the rate of 50km/h, b...