Respuesta :

anchitthawi
2 1/4 miles in 3/5 of an hour

2 1/4 miles = 9/4 miles

so 3/5 of an hour = 9/4 miles
then 5/5 of an hour = 9/4*5/5 / 3/5 = 9/4*1*5/3 = (9*5)/(4*3) = 15/4 = 3 3/4 miles

then average speed Stephanie walks is 3 3/4 miles per hour.