Chiara rode her bicycle 18.2 km in 1.4 hours. She determines that her mean speed was less than 17 km per hour for this trip. Is she correct?

Question

AL2006 · Answer

Well, let's see: 
 18.2 km / 1.4 hours = 13 km per hour 
 She is correct, because 13 is less than 17 .

AL2006 · Answer

Chiara's mean speed was calculated to be approximately 13 km/h. Since 13 km/h is less than 17 km/h, Chiara is correct in her assertion. Thus, her mean speed is indeed less than 17 km/h. 
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Chiara rode her bicycle 18.2 km in 1.4 hours. She determines that her mean speed was less than 17 km per hour for this trip. Is she correct?

Answer (2)

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