John bikes for 2 hours at a speed of 15 miles per hour. How many hours will it take Shannon to cover the same distance at a speed of 10 mi/h?

if john bikes for two hours 15 miles per hour two hours is thirty miles of biking

D=RT

Distance = 30 miles

Rate = 10 miles per hour

Time = t

plug numbers in

30 = 10t

divide each side by ten to get t by itself

t = 3

time = 3

3 hours to travel 30 miles biking at 10mph