distance_to_travel = float(input('How far are you going? '))
speed_limit = float(input('What is the speed limit? '))
minutes_to_save = float(input('How many minutes do you want to save? '))
numerator = (speed_limit * minutes_to_save * speed_limit) / (distance_to_travel * 60)
denominator = 1 - (speed_limit * minutes_to_save) / (distance_to_travel * 60)
new_speed = (numerator / denominator) + speed_limit
print ('You should go', new_speed, 'to save', minutes_to_save, 'minutes over going', speed_limit, end=' ')
print ('when traveling', distance_to_travel, 'miles')
