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Question
primary 6 | Maths
| Speed
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Date Posted: 4 years ago
Views: 277
J
speed = 75 km/h
time: t
dist. ( fr. A )= 75xt = 75t
R
speed = 80 km/h
time: t
dist. ( fr. B ) = 80xt = 80t
dist. ( fr. A ) = 542.5 - 80t
75t = 542.5 - 80t
t = 3.5 h
J's dist. from A is 75x3.5 = 262.5 km
...
speed = 75 km/h
time: t
dist. ( fr. A )= 75xt = 75t
R
speed = 80 km/h
time: t
dist. ( fr. B ) = 80xt = 80t
dist. ( fr. A ) = 542.5 - 80t
75t = 542.5 - 80t
t = 3.5 h
J's dist. from A is 75x3.5 = 262.5 km
...
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hope it helps
Date Posted:
4 years ago
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