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Lê Nguyễn

11/07/2018 at 14:58
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For grade 5 students: A car goes from A to B with a speed at 45km per hour, but at the same time, an another car goes from B to A with a speed at 50km per hour. After 45 minutes, the two cars meet at each other. Find the length of the line segmet AB (Here's the hint: v(speed) = s(length) : t(time)

Length of the line segment AB: ........... km




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    Mr. Bee moderators 12/07/2018 at 04:25

    \(AB = (45+50) \times \dfrac{3}{4} =71.25\)(km)


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