I WILL GIVE BRAINLIEST PLEASE HELP QUICK To the nearest minute, how much time could Robert save on a 60 mile trip if he drove at 70 mph rather than at 50 mph?

12 minutes

Step-by-step explanation:

Given the question :

how much time could Robert save on a 60 mile trip if he drove at 70 mph rather than at 50 mph?

Time taken to cover 60 miles at a speed of 50 miles per hour

Recall :

Time taken = distance / speed

Hence, at Speed = 50 mph

Time taken = 60/50

Time taken = 1.2 hours = (1.2 * 60) = 72 minutes

At speed = 70mph

Time taken = 70/50

Time taken = 1.4 hours = (1.4 * 60) = 84 minutes

Time saved :

(84 - 72) = 12 minutes

correct answer:

b.(19,-2)