A train in Japan can travel 813.5 miles in 5 hours

Question

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​Find the unit rate in miles per hour.
A
162.7 miles/hr162.7\ \mathrm{miles}/\mathrm{hr}162.7 miles/hr
B
325.4 miles / hr325.4\ \text{miles\ }/\mathrm{\ hr}325.4 miles / hr
C
650.8 miles / hr650.8\ \text{miles\ }/\mathrm{\ hr}650.8 miles / hr
D
813.5 miles / hr813.5\ \text{miles\ }/\mathrm{\ hr}813.5 miles / hr

Answer 1

To find the unit rate in miles per hour, we need to divide the total distance traveled by the total time taken.

Given:

• Distance = 813.5 miles
• Time = 5 hours

The formula for the unit rate (miles per hour) is:

\[ \text{Unit Rate} = \frac{\text{Distance}}{\text{Time}} = \frac{813.5 \text{ miles}}{5 \text{ hours}} \]

Calculating that:

\[ \text{Unit Rate} = 162.7 \text{ miles/hour} \]

So the correct answer is:

A: 162.7 miles/hr