It takes Serina 0.25 hours to drive to school. Her route is 16 km long. What is Serina’s average speed on herdrive to school

1. Break Down the Problem

To find Serina's average speed, we can use the formula: $\text{Average Speed} = \frac{\text{Total Distance}}{\text{Total Time}}$ Where:

• Total Distance = 16 km
• Total Time = 0.25 hours

2. Relevant Concepts

We need to apply the formula for average speed as stated above.

3. Analysis and Detail

Now, let's substitute the values into the formula:

$\text{Average Speed} = \frac{16 \text{ km}}{0.25 \text{ hours}}$

Now, perform the division:

$\text{Average Speed} = 16 \div 0.25$

Calculating this gives:

$\text{Average Speed} = 16 \times 4 = 64 \text{ km/h}$

4. Verify and Summarize

We have calculated the average speed as $64 \text{ km/h}$. This is verified by translating the division into multiplication for ease of calculation.

Final Answer

Serina’s average speed on her drive to school is $64 \text{ km/h}$.