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DochEvi [55]
3 years ago
8

a boat travels 252 miles in 13 hours (with a constant speed) How much time will it take traveling 279 miles?

Mathematics
1 answer:
Ilya [14]3 years ago
4 0

Answer: 14.4 h

The speed is : v=\frac{d}{t} =\frac{252}{13} =19.46 miles/h\\

The time it takes to travel 279 miles :

t'=\frac{d}{v} =\frac{279}{19.46} =14.4 hours

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$S=\sqrt{\frac{1}{n-1}\sum(x-\mu)^2}$

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$S=\sqrt{\frac{1}{9}(657.4+577.9+508.0+472.6+220.2+149.8+160.2+203.3+844.4+4232.8)}$$S=\sqrt{\frac{1}{9}(8026.96)}$

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3 years ago
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