keshan3000
23.07.2019 •
Mathematics
Atrain travels 210 miles in 3 hours, moving at a constant speed. how long will it take the train to travel 350 miles at this speed?
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Ответ:
210 miles / 3 hours = 70 miles per hour
350 miles / 70 miles per hour = 5 hours
Ответ:
Step-by-step explanation:
∠TUV = 2×(90°-108°/2)
= 2×(90°-108°/2)
= 72°