3 years ago

It takes Gretchen 275 seconds to travel 5500 m in her car. What is her rate of speed in kilometers per hour

1 answer:

7 0

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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