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Mathematics, 22.03.2020 21:10 ziggyrules2002
Yuto and Lian are at train stations 1,880 kilometers apart. Yuto boards a train heading east at an average speed of 220
kilometers per hour. At the same time, Lian boards a train heading west on a parallel track at an average speed of 250
kilometers per hour. How far has Lian traveled when the two trains pass each other?
Time
(h)
Rate
(km/h)
220
250
Distance
(km)
220t
250t
Yuto
Lian
470 kilometers
880 kilometers
940 kilometers
1,000 kilometers
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Answers: 3
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Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?
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Mathematics, 22.06.2019 07:00
Can someone answer this question 94+147454521514264251+414-4466*467436+4554542252153
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Yuto and Lian are at train stations 1,880 kilometers apart. Yuto boards a train heading east at an a...
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