选择题
2023 AMC 8 Problem 3: Wind Chill
Wind chill is a measure of how cold people feel when exposed to wind outside. A good estimate for wind chill can be found using this calculation:
(wind chill) = (air temperature) − 0.7 × (wind speed),
where temperature is measured in degrees Fahrenheit (°F) and the wind speed is measured in miles per hour (mph). Suppose the air temperature is 36°F and the wind speed is 18 mph. Which of the following is closest to the approximate wind chill?
2023 AMC 8 第3题：风寒
风寒度是衡量人们暴露在室外风时的寒冷程度的指标。使用以下计算可以找到对风寒的良好估计：
(风寒) = (气温) − 0.7 × (风速),
其中温度以华氏度 (°F) 为单位，风速以英里每小时 (mph) 为单位。假设气温为 36°F，风速为 18 英里/小时。下列哪项与风寒的近似值最接近
A.
18
B.
23
C.
25
D.
31
E.
35