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Anettt [7]
2 years ago
11

Sam is driving at a speed of 15 meters per per second. He travels the distance from his home to his friends house in 90 minutes.

How far away in kilometers is his friend's house
Mathematics
1 answer:
Dominik [7]2 years ago
6 0

Answer:

81 km

Step-by-step explanation:

Speed = distance / time

speed and time are measured in different units, thus, time has to be converted to seconds

60 second = 1 minute

90 x 60 = 5400 seconds

15 m /s = distance / 5400 seconds

distance = 81,000 metre

1000m = 1 km

81000 / 1000 = 81km

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