branimirthegreat0911 branimirthegreat0911

09-03-2020
Mathematics

contestada

A train goes twice as fast downhill as it can go uphill, and 2/3 feet as fast uphill as it can go on level ground. If it goes 120 miles per hour downhill, how long will it take to travel 45 miles per flat

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21savageac 21savageac

09-03-2020

Answer:

Step-by-step explanation:

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Lovebtsjungkook Lovebtsjungkook

09-03-2020

Answer:120/2=60 speed uphill. Speed level 3/2 uphill=90 speed downhill 120 on flat land d=45=90*t t=1/2 hrs

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