Algebra
Lección 71 de 224 · Passing Trains · Estudios básicos
Passing Trains
Trains passing at different rates.
More free lessons at: http://www.khanacademy.org/video?v=qLLjD-g_9ms
Lección 71 de 224 · Passing Trains · Estudios básicos
Trains passing at different rates.
More free lessons at: http://www.khanacademy.org/video?v=qLLjD-g_9ms