Question

Question

Delta drives at an average speed of 17 miles per hour through traffic. What is her speed in kilometers per hour if 1 kilometer is approximately equal to 0.62 miles? Round to the nearest tenth of a kilometer.(1 point)
Responses

2.7
2.7

27.4
27.4

17.6
17.6

10.5

Answer 1

To convert Delta's speed from miles per hour to kilometers per hour, we can use the conversion factor that 1 kilometer is approximately equal to 0.62 miles.

First, we can express this as: \( 1 \text{ mile} \approx \frac{1}{0.62} \text{ kilometers} \)

Now, let's find how many kilometers are in 17 miles: \[ \text{Speed in kilometers per hour} = 17 \text{ miles/hour} \times \frac{1 \text{ kilometer}}{0.62 \text{ miles}} \]

Calculating this gives: \[ \text{Speed in kilometers per hour} = 17 \div 0.62 \approx 27.41935484 \]

Now, rounding to the nearest tenth: \[ 27.41935484 \approx 27.4 \text{ kilometers per hour} \]

So, the answer is: 27.4