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Juan rides his bike with a constant speed of 20 km/h. How long will he take to travel a distance of 30 kilometers?
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Dec 10, 2017
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Juan rides his bike with a constant speed of 20 km/h. How long will he take to travel a distance of 30 kilometers?
Mathematics
middle-school
Johanne Irish
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okay so he is rideing 20 km per hour and he needs to go 30 km
it will take him about one and a half hours to reach his destination
Kaediil
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Dec 11, 2017
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Kaediil
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Given:
unit rate: 20km/h
Speed = distance / time
20kmh = 30km / time
time = 20kmh / 30km
time = 2/3 hrs or 40 minutes
2/3 hrs * 60mins/hr = (2*60)/3 = 120/3 =
40 minutes
MissT
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Dec 14, 2017
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