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Secondary 1 | Maths
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Date Posted: 2 years ago
Views: 389
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d = 240 - 80t
When d = 40,
40 = 240 - 80t
80t = 240 - 40
80t = 200
t = 200/80
t = 5/2 = 2½
When the train reaches the station, d = 0 because they is no more distance between them.
So, 0 = 240 - 80t
80t = 240
t = 240/80
t = 3
When d = 40,
40 = 240 - 80t
80t = 240 - 40
80t = 200
t = 200/80
t = 5/2 = 2½
When the train reaches the station, d = 0 because they is no more distance between them.
So, 0 = 240 - 80t
80t = 240
t = 240/80
t = 3
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