Dionna rode her skateboard at a speed of 10 miles per hour. Which statement is correct?

Use time = distance ÷ speed. For 2.5 miles at 10 miles per hour, the time is 2.5 ÷ 10 = 0.25 hours, so the correct statement is “If she covered 2.5 miles, she rode for 0.25 hours.”

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