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primary 6 | Maths | Speed
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Elly
Elly

primary 6 chevron_right Maths chevron_right Speed chevron_right Singapore

Ty

Date Posted: 2 weeks ago
Views: 20
snell
Snell
2 weeks ago
D
duration: 4.5 h
speed: u+24
distance: 4.5u + 108

J
duration: 4.5 h
distance: 792-(4.5u+108) = 684 - 4.5u
speed: u

4.5 x u = 684 - 4.5u
u = 76 km/h

John's speed is 76 km/h


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Tan Hui Zhen
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