Answer:
The average speed of the car, in miles per hour, from 17:30 to 19:42, is 119.167 meters per second.
Step-by-step explanation:
Physically speaking, average speed (
), measured in miles per hour, is the distance travelled (
), measured in miles, divided by time (
), measured in hours. That is:
(1)
The time needed by the vehicle is:


If we know that
and
, then the average velocity of the car is:


The average speed of the car, in miles per hour, from 17:30 to 19:42, is 119.167 meters per second.
Hey!
You must divide the amount of money he spent by the amount of money each ticket costs:
32 ÷ 8 = 4
So, Mr. Chen bought 4 tickets.
38 yard piece for each student and there are 16 students:
38*16=608
608 yards needed for your class
It is 4170 I believe if my calculations are correct