11-09-2016
Mathematics

contestada

Tam takes 2 hours to cycle 20km.Find his average speed in km/hr

Respuesta :

11-09-2016

2hr = 2km
1hr = 2km ÷ 2hr
= 1km
So, Tom's average speed is 1km/hr

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phân tích nhân thức sau thành phân tử x³+2x²+x