tyreekboyd8267 tyreekboyd8267

24-12-2017
Mathematics

contestada

When fritz drives to work his trip takes 4848 minutes, but when he takes the train it takes 4040 minutes. find the distance fritz travels to work if the train travels an average of 66 miles per hour faster than his driving. assume that the train travels the same distance as the car?

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jorel1380 jorel1380

01-01-2018

Let n be the speed of Fritzs' car, and n+6 be the speed of the train. Then:
4/5 (n)=2/3 (n+6)
4n/5=2n+12/3
10n+60=12n
2n=60
n=30
Fritz travels 4/5(30), or 24 miles to work
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