Question

6. Starting from 1.5 miles away, a car drives toward a speed checkpoint and then passes it. The car travels at a constant rate of 53 miles per hour. The distance of the car from the checkpoint is given by d = |1.5 – 53t|. At what times is the car 0.1 miles from the checkpoint? Calculate your answer in seconds.
95.1s and 108.7s
10.2s and 101.9s
108.7s and 10.2s
95.1s and 10.2s

Answer 1

For the answer to the question above, 

To be 0.1 miles away from the check point ,
 the car has to travel 1.4 miles OR 1.6 miles. 


53 miles = 60 minutes 

1.4 miles = 1.4 / 53 X 60 = 1.5849056 minutes OR 95.1 seconds 

1.6 miles = 1.6 /53 X 60 = 1.8113207 minutes OR 108.7 seconds 
So the answer is 95.1s and 108.7s
I hope my answer helped you