It takes Gretchen 275 seconds to travel 5500 m in her car. What is her rate of speed in kilometers per hour
1 answer:
Answer:
72km/h
Step-by-step explanation:
Convert units to kilometers and hours.
275 seconds ÷ 60² ≈ 0.0764 hours
5500 meters ÷ 1000 = 5.5 km
Convert to kilometers/hour.
5.5km ÷ 0.0764hrs = 72km/h
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