Kathy walked 3 1/2 miles per hour for 1 1/4 hours. during 1/2 of her walking time it rained. how many miles did she walk while it was raining?

1 1/4 = 5/4 * 1/2 = 5/8

3 1/2 = 7/2 * 5/8 = 35/16 =  2 3/16 miles

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)