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Jane leaves new york on a cross country trip at 7 am She averages 40 miles per hour Alice takes the same route but doesnt leave till 8am at an average 50miles per hour At what time will she pass Jane?
Wiki User
∙ 14y ago
At the moment when Alice passes Jane, she has traveled one less hour than Jane,
and they have both traveled the same distance.
Let 'H' be the number of hours since 7 AM.
Jane's distance is 40H. Alice's distance is 50(H-1). The distances are equal.
40H = 50(H-1) = 50H - 50
Add 50 to each side:
40H + 50 = 50H
Subtract 40H from each side:
50 = 10H
Divide each side by 10:
5 = H
They wave at (7 + 5) = 12:00 Noon.
Wiki User
∙ 14y ago
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