你很接近了您只需定义mph_and_minutes_to_miles函数，该函数首先调用calculate_hours_traveled将分钟数转换为小时数，然后调用calculate_miles_traveled从速度和小时数中获取行驶的距离。

def calculate_hours_traveled(minutes_traveled):
    return minutes_traveled / 60.0

def calculate_miles_traveled(miles_per_hour, hours_traveled):
    return hours_traveled * miles_per_hour

def mph_and_minutes_to_miles(mph, mins):
    return calculate_miles_traveled(mph, calculate_hours_traveled(mins))

我相信你应该试试下面的代码（你需要先定义“mph_and_minutes_to_miles”，然后返回正确的主题）：

def calculate_hours_traveled(minutes_traveled):
hours_traveled = minutes_traveled / 60.0
return hours_traveled

def calculate_miles_traveled(miles_per_hour, hours_traveled):
miles_traveled = hours_traveled \* miles_per_hour
return miles_traveled

def mph_n_mins_to_miles(miles_per_hour, mins_traveled):
hours_traveled = calculate_hours_traveled(minutes_traveled)
miles_traveled = calculate_miles_traveled(miles_per_hour, 
hours_traveled)
return mph_n_mins_to_miles

之后，您可以在顶部添加上面提供的代码并调用函数：

miles_per_hour = float(input())
minutes_traveled = float(input())

print(f'Miles: {mph_n_mins_to_miles(miles_per_hour, 
minutes_traveled):f}')

谢谢