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Mathematics, 16.04.2020 21:00 louistwdg

Pairs of markings a set distance apart are made on highways so that police can detect drivers exceeding the speed limit. Over a fixed distance, the speed R varies inversely with the time T. In one particular pair of markings, R is 45 mph when T is 5 seconds. Find the speed of a car that travels the given distance in 3 seconds.

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