Respuesta :

speed=distance/time

Diana: (3/8)/5=3/(5*8)=3/40 mi/s=0.075 mi/s
Fernando: 2 1/2 miles=5/2 miles
(5/2)/(3/4)
multiply outer values and divide by the inner values:
=(5*4)/(2*3)=20/6=10/3 mi/h= 3 1/3 mi/h=3.3...mi/h

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