python_string

`# ex4.py

cars's number

cars = 100

one car's space is

space_in_a_car = 4.0

drivers's number is

drivers = 30

passengers's number is

passengers = 90

not used cars's number is

cars_not_driven = cars - drivers

using cars's number is

cars_driven = drivers

carpool_capacity = cars_driven * space_in_a_car
average_passengers_per_car = passengers / cars_driven

print("There are", cars, "cars availble.")
print("There are only", drivers, "drivers available.")
print("There will be", cars_not_driven, "empty cars today.")
print("We can transport", carpool_capacity, "people today.")
print("We have", passengers, "to carpool today.")
print("We need to put about", average_passengers_per_car, "in each car.")`