Write the answer rounded to the nearest whole km/h. Do not use significant figures.

 

42 mi/h = _____ km/h

To convert miles per hour (mi/h) to kilometers per hour (km/h), we use the conversion factor:

\[
1 \text{ mile} = 1.60934 \text{ kilometers}
\]

So, to convert 42 mi/h to km/h:

\[
42 \times 1.60934 = 67.59228 \text{ km/h}
\]

Rounding to the nearest whole number:

\[
42 \text{ mi/h} \approx 68 \text{ km/h}
\]

The answer is **68 km/h**.

Would you like more details or have any questions?

Here are 5 related questions to expand your understanding:
1. How do you convert km/h back to mi/h?
2. What is 50 mi/h in km/h?
3. How many kilometers are there in 100 miles?
4. How do you convert 100 km/h to mi/h?
5. What is the speed of light in kilometers per hour?

**Tip:** Always use a reliable conversion factor (like 1 mile = 1.60934 km) to ensure accurate results in speed or distance conversions.

Write the answer rounded to the nearest whole km/h. Do not use significant figures. 42 mi/h = _____ km/h

Learn how to convert 42 miles per hour (mi/h) to kilometers per hour (km/h) using the conversion factor 1 mile = 1.60934 kilometers. In this example, the result is approximately 68 km/h, rounded to the nearest whole number. Suitable for students in Grades 5-7.

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