Problem
2. Oscar rides his skateboard \( \frac{5}{8} \) mile in \( \frac{1}{4} \) hour. How fast, in miles per hour, does he ride his skateboard? (A) \( \frac{5}{32} \) mile per hour (B) \( \frac{2}{5} \) mile per hour (C) \( 2 \frac{1}{2} \) miles per hour (D) 3 miles per hour
Solution
Step 1 ：\( \text{speed} = \frac{\text{distance}}{\text{time}} \)
Step 2 ：\( \text{speed} = \frac{\frac{5}{8}}{\frac{1}{4}} \)
Step 3 ：\( \text{speed} = 2 \frac{1}{2} \) miles per hour
