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Mathematics, 27.06.2019 20:50 brycehelmke60811
Atourist has planned a trip to cover the distance of 640 miles, driving at some constant speed. however, when he already covered a quarter of the distance, he took a rest for 1.2 hours. then, in order to arrive at the destination on time, he increased the speed by 20 mph. how long, actually, the trip lasted?
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Atourist has planned a trip to cover the distance of 640 miles, driving at some constant speed. howe...
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