Question

A car is travelling at an average speed of 110

110
km/hr. Each trip the car must stop for gas which takes 15
15
minutes. Write an equation to determine the amount of time (T)
(
T
)
in hours it takes the car to travel x
x
distance.

Answer 1

Explanation:

Average speed (velocity) = 110 km/h

15 minutes in hours = 15/60 = 1/4 h or 0.25 h

total distance (car) = x km

Time = distance/speed = x/110 hours

The car also stopped for 15 minutes for gas. Therefore,

T = [ x/110 + 0.25]