Problem

A car travels 255 miles in 3 hours and 45 minutes. How many miles does it travel per hour?
miles per hour
Explanation
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Answer

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Answer

\boxed{68}

Steps

Step 1 ：Convert the time to hours: 3 hours and 45 minutes = 3 + $\frac{45}{60}$ = 3.75 hours

Step 2 ：Calculate miles per hour: $\frac{255}{3.75}$ = 68

Step 3 ：\boxed{68}

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