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06-01-2018
Mathematics

contestada

1.A car takes 1 hour 40 minutes to travel 117 km. What is the average speed of the car I’m I’m per hour?

2. How many minutes will it take the car to travel 19 1/5 km?

Respuesta :

Аноним Аноним

06-01-2018

1 hr 40 mins = 5/3 hours

average speed = 117 / 5/3 = 117*3 / 5 = 70.2 kph.

2. speed = distance / time
70.2 = 19.2 / time
time = 19.2 / 70.2 = 0.2735 hours = 16.5 minutes answer

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