Question

Latoya is riding her bicycle. She rides 19.2 kilometers in 3 hours. What is her speed?

Answer 1

Since we want the unit speed (kilometers per hour, or 1 hour), we want to find the rate of kilometers to hours. We have 19.2 kilometers, and 3 hours, but we want to get to 1 hour. To get that, we can simply make it a fraction (“per” is a key word for a fraction) to get 19.2 km/3 hours. Dividing both the numerator and denominator by 3 to get 1 hour (this works due to that since we’re dividing both by 3, we’re essentially multiplying by 1, and we can multiply by 1 using identity properties. To elaborate, if we have (x/y)/(a/y), with y being the same number, we can make it into a multiplication problem by switching the numerator and denominator of the bottom function to get (x/y)*(y/a)=x/y), we get 19.2/3=6.4 and 3/3=1. Therefore, as we have 6.4 kilometers/1 hour, Latoya’s speed is 6.4 kilometers per hour.

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Answer 2

Answer:

6 .4hrs took by latoya to cover the distance.

Explanation:

We have been given that latoya is riding his bicycle. He rides at a speed of 3 kilometers per hour for 19.2.

Let's write the data in simplest form.

Total distance covered by dale = 19.2 km

Speed of bicycle = 3 km/hr

We have to find the time taken by latoya to cover the distance.

Here, Time is given by distance / Speed.

Time = Distance/Speed

Time = 19.2/ 3

Time = 6.4 hr

• Therefore, 6.4 hrs took by latoya to cover the distance.