coalmax1212
05.09.2019 •
Mathematics
Train a has a speed 20 miles per hour greater than that of train b. if train a travels 320 miles in the same times train b travels 280 miles, what are the speeds of the two trains?
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Ответ:
Step-by-step explanation:
The difference in distance traveled is 40 miles, so each train must have traveled 2 hours.
Train A speed = (320 mi)/(2 h) = 160 mi/h
Train B speed = (280 mi)/(2 h) = 140 mi/h
The difference in speed means Train A gains on Train B by 20 miles each hour. After 2 hours, it will have gone 40 miles farther.
Ответ:
Forma totalmente factorizada: f (x) = (x - 3) (x + 3) [x - (2 - i)] [x - (2 + i)] La función tiene raíces reales y raíces imaginarias.
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Forma totalmente factorizada: f (x) = (x - 3) (x + 3) [x - (2 - i)] [x - (2 + i)] La función tiene raíces reales y raíces imaginarias.
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Forma totalmente factorizada: f (x) = (x - 3) (x + 3) [x - (2 - i)] [x - (2 + i)] La función tiene raíces reales y raíces imaginarias.
Forma totalmente factorizada: f (x) = (x - 3) (x + 3) [x - (2 - i)] [x - (2 + i)] La función tiene raíces reales y raíces imaginarias.
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Forma totalmente factorizada: f (x) = (x - 3) (x + 3) [x - (2 - i)] [x - (2 + i)] La función tiene raíces reales y raíces imaginarias.
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Forma totalmente factorizada: f (x) = (x - 3) (x + 3) [x - (2 - i)] [x - (2 + i)] La función tiene raíces reales y raíces imaginarias.
Forma totalmente factorizada: f (x) = (x - 3) (x + 3) [x - (2 - i)] [x - (2 + i)] La función tiene raíces reales y raíces imaginarias.
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Forma totalmente factorizada: f (x) = (x - 3) (x + 3) [x - (2 - i)] [x - (2 + i)] La función tiene raíces reales y raíces imaginarias.
Forma totalmente factorizada: f (x) = (x - 3) (x + 3) [x - (2 - i)] [x - (2 + i)] La función tiene raíces reales y raíces imaginarias.
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Forma totalmente factorizada: f (x) = (x - 3) (x + 3) [x - (2 - i)] [x - (2 + i)] La función tiene raíces reales y raíces imaginarias.
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Forma totalment