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The diameter of the train wheel is 1.5 meters. The diameter of the train wheel is 1.5 meters. If the wheel rotates 300 cycles per minute, how many minutes does it take to travel 28.26 kilometers?
It takes X minutes (28.26km = 28260m)
three point one four × three hundred × 1.5x=28260
x=20
So it takes 20 minutes
The outer diameter of the train wheel is 0.8 meters. If it rotates 400 times per minute, how many kilometers does the train travel per hour
three point one four × zero point eight × four hundred × 60÷1000
=2.512 × four × six
=60.288 (km)
A: the train travels 60.288 kilometers per hour
The outer diameter of the train wheel is 0.8 meters. If it rotates 400 times per minute, how many kilometers does the train travel per hour
three point one four × zero point eight × four hundred × 60÷1000
=2.512 × four × six
=60.288 (km)
A: the train travels 60.288 kilometers per hour
The outer diameter of the train wheel is 0.8 meters. If it rotates 400 times per minute, how many kilometers does the train travel per hour
three point one four × zero point eight × four hundred × 60÷1000
=2.512 × four × six
=60.288 (km)
A: the train travels 60.288 kilometers per hour
The wheel diameter of a train is 1.5 meters. If it rotates 300 times per minute, how long will it take to travel 2026 kilometers?
If the wheel diameter is 1.5m, the circumference is 1.5m × Pai m (where Pai = 3.1415926...)
300 revolutions per minute, you can walk 450 × Pai meters
Then it takes minutes to travel 2026km:
two thousand and twenty-six × 1000/(450 × PAI) = 1433 minutes (approximately equal to)
The outer diameter of the train wheel is 0.8 meters. If it rotates 400 times per minute, how many kilometers does the train travel per hour
three point one four × zero point eight × four hundred × 60÷1000
=2.512 × four × six
=60.288 (km)
A: the train travels 60.288 kilometers per hour
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- 1. The outer diameter of the train wheel is 0.8 meters. If it rotates 400 times per minute, how many kilometers does the train travel per hour
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