Respuesta :

Answer:

1 1/2 hours

Explanation:

1/3 of an hour is 20mins

multiply 1/2mile*2

and 20mins*2

1mile in 40mins.

1*2.25

40*2.25=90mins

2 1/4 miles in 90mins or an hour and a half

That could also be written as

2 1/4 miles in 3/2 hours or 1 1/2 hours