polina6 polina6

09-09-2017
Mathematics

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A bird leaves its nest and travels 20 miles per hour downwind for x hours. On the return trip, the bird travels 4 miles per hour slower and has 6 miles left after x hours.

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Аноним Аноним

09-09-2017

[tex]x = d/20 x = (d - 6)/(16) [/tex]

[tex]d/20 = (d - 6)/16[/tex]

[tex]20d - 120 = 16d -120 = -4d 30 = d[/tex]

[tex]60 miles.[/tex]

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