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lina2011 [118]
3 years ago
14

A cyclist rides her bike at a rate of 5 meters per second. What is this rate in kilometers per hour ? How many kilometers will t

he cyclist travel in 5 hours?
Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
7 0

Answer:

18 km/hr

90 km

Step-by-step explanation:

We know that there are

1000 m = 1 km

and

3600 s = 1 hr

We need to convert m/s to km/h

5 m      3600s        1 km         18000km       18 km

------ * ------------  * ------------ = ---------------   = ------------

s                1 hr         1000m    1000 hr            hr

It is 18 km/hr since the units cancel.

We want to know how far the cyclist travels

d=rt

We know the rate 18km/hr and the time = 5 hr

d = 18 km/hr * 5 hr

d =90 km

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2 years ago
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