Mathematics, 22.03.2021 21:30 NathanaelLopez

Rebecca travels 160 km in 2.5hours and then travels at a constant speed of 85 km/h for a further 2 hours. Find the average speed, in km/h to 3 significant figures, for the whole journey.

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Rebecca travels 160 km in 2.5hours and then travels at a constant speed of 85 km/h for a further 2 h...

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