one lap around a dirt trap is 1/3 of a mile. It takes Mark 1/9 hour to ride one lap. what is mark rate in mile per hour

Question

please help 

Answer 1

1 lap = 1/3 mile

1 lap takes 1/9 hr

 

1/3 mile takes 1/9 hr

 

You're asked to solve for miles/hour so divide 1/3 mile by 1/9 hr

 

1/3 mile ÷ 1/9 hr = 9/3 miles/hr = 3 miles/hr