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QuestionMathematics

40 kilometers per hour is equivalent to approximately what speed in MPH? A. 15 B. 25 C. 40 D. 20
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Answer

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Step 1:
I'll solve this conversion problem step by step using the specified LaTeX formatting guidelines:

Step 2:
: Understand the Conversion

To convert kilometers per hour (km/h) to miles per hour (mph), we need to know the conversion factor between kilometers and miles.

Step 3:
: Recall the Conversion Factor

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

Step 4:
: Set Up the Conversion Calculation

We want to convert $$40 \frac{\text{kilometers}}{\text{hour}}$$ to miles per hour.

Step 5:
: Perform the Calculation

40 \text{ km/h} \times \frac{1 \text{ mile}}{1.60934 \text{ km}} = \frac{40}{1.60934} \text{ miles/h}

Step 6:
: Calculate the Result

\frac{40}{1.60934} \approx 24.86 \text{ mph}

Step 7:
: Round to the Nearest Whole Number

24.86 \text{ mph} \approx 25 \text{ mph}

Final Answer

The correct answer is B. 40 kilometers per hour is equivalent to approximately 25 miles per hour.