Kathleen bicycled to Julie’s house. It is 10 miles from Kathleen’s house to Julie’s house. It took Kathleen 2 hours to get there. How fast did Kathleen go?

Answer 1

distance : time = speed. So 10:2=5 miles per hour

Answer 2

She traveled 10 miles in 2 hours or 10/2 miles/hour or 5 miles/hour.

It might be easier to envision written like this: