A man on a road trip drives a car at different constant speeds over several legs of the trip. He drives for 55.0 min at 60.0 km/h, 18.0 min at 80.0 km/h, and 60.0 min at 60.0 km/h and spends 25.0 min eating lunch and buying gas.

Complete Question

A man on a road trip drives a car at different constant speeds over several legs of the trip. He drives for 55.0 min at 60.0 km/h, 18.0 min at 80.0 km/h, and 60.0 min at 60.0 km/h and spends

25.0 min eating lunch and buying gas

What is the total distance traveled over the entire trip (in km)

The value is

Explanation:

From the question we are told that

For the speed is

For the speed is

For the speed is

The time taken to have lunch is

Generally the total distance traveled over the entire trip (in km) is mathematically represented as

=>  

=>  

=>  

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6