Respuesta :
takes her 20 minutes to walk 1/2 a mile
2 miles=80 minutes
1/4= 10 minutes i think
so 80+10=1 1/2
{This is not my work!!!}
Step-by-step explanation:
Velocity = distance/time
1/3 h=20m
V=0.5/20=0.025m/m
So time= distance/velocity
T=2.25/0.25=90m
90m= 1.5h
I did it also by logic by using these steps:
1/2*(1/2 mile in 1/3 hour) = 1/4 mile in 1/6 hour
we have 9 quarter in 2 1/4
So 1/6 * 9 =1.5h
hope this helps !