Problema Solution
A car travels
450 mi at a certain speed. If the speed had been 5 mph​ faster, the trip would have been made in 1 hr less time. Find the speed
Answer provided by our tutors
Let s = the car's actual speed in mph
Let t = the car's actual time in hours
given:
s*t = 450
(s + 5)*( t - 1 ) = 450
........
click here to see the system of equations solved for s and t
........
s = 45 mph
t = 10 hr
The speed was 45 mph.