Problema Solution
A race car driver won a 400 mile race with a speed of 175.3 mph. Find the driver's time.
Answer provided by our tutors
let
v = 175.3 mph
d = 400 miles
t = ? the drivers time
since v = d/t => t = d/v
t = 400/175.3
t = 2 49.4/175.3 hours = 2 hours 49.4*60/175.3 min = 2 hours 16 min 54.49 seconds
the drivers time was 2 hours 16 min 54.49 seconds.