Answer:
#_cars = 7
Explanation:
For this exercise let's start by finding the total number of students
#_students = 12 +15
#_students = 27
Now we can use a direct proportion relationship or rule of three. If 4 students drive, how many cars for 27 students?
#_cars = 27 (¼)
#_cars = 6.75
the number of cars must be an integer therefore the correct answer is
#_cars = 7
The answer should be A.
The faster you are going the more force will be added, as you brake you will feel about double the mass of the car causing longer braking distance.
0.0069 in scientific notation is = 6.9×10^-3