SOLUTION: A car travels at a constant speed of 60 km/h for hours, stops for half an hour and then travels for another 2 hours at a constant speed of 80 km/h, reaching its destination.

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Question 620346: A car travels at a constant speed of 60 km/h for hours, stops for half an hour and then travels for another 2 hours at a constant speed of 80 km/h, reaching its destination.
Construct a function that describes the distance travelled by the car, d (km), at time, t hours


Answer by lwsshak3(6522) About Me  (Show Source):
You can put this solution on YOUR website!
A car travels at a constant speed of 60 km/h for hours, stops for half an hour and then travels for another 2 hours at a constant speed of 80 km/h, reaching its destination.
Construct a function that describes the distance travelled by the car, d (km), at time, t hours
**
let t=total hours of travel
distance=travel time*speed
distance=60(t-2.5)+80(2)
distance=60t-150+160
d(t)=(60t+10) km