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

Answer

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Answer

\( \text{speed} = 2 \frac{1}{2} \) miles per hour

Steps

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