thawin2007 thawin2007

08-09-2021
Mathematics

contestada

Sally is training for a marathon. She goes for a run every Tuesday and
Last week, on Tuesday she ran 2.4 km in 18 minutes. On Friday she ran 1.8 km in 12 minutes.
A.Work out the speed Sally ran each evening, in kilometres per minute,
B.On which evening did Sally run faster?

Respuesta :

musiclover10045 musiclover10045

08-09-2021

Speed = distance / time

Tuesday: speed = 2.4km / 18 minutes = 0.13 km per minute

Friday: speed = 1.8 km / 12 minutes = 0.15 km per minute

0.15 is larger than 0.13 so she ran faster on Friday.

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