Problema Solution
The odometer shows that Darlene rode her bike 8 2/5 miles in 3/4 of an hour. What was her average speed?
Answer provided by our tutors
let
d = 8 2/5 mi = (8*5 + 2)/5 mi = 42/5 mi
t = 3/4 hr
v = the average speed
average speed = total distance/total time that us v = d/t
v = (42/5)/(3/4)
v = 11.2 mph
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Darlene's average speed was 11.2 miles per hour.