168. In a certain business, production index p is directly proportional to efficiency index e, which is in turn directly proportional to investment index i'. What is p if i = 70 ? (1) e = 0.5 whenever i = 60. (2) p = 2.0 whenever i = 50. 问题1:这个题A is directly proportional to B 就是成正比的意思吧? 请问下成反比怎么表达啊? 问题2: P= 2 Whenever I = 50 的含义是,当I=50, P为2吧? 还是反之啊? 感谢好心人赐教哦。哈哈 -- by 会员 AlexYYY (2013/1/8 12:40:51)
问题1:这个题A is directly proportional to B 就是成正比的意思吧? 请问下成反比怎么表达啊?
反比的表达是 inverse proportion
问题2: P= 2 Whenever I = 50 的含义是,当I=50, P为2吧? 还是反之啊?
和你理解的一样:当I=50, P=2 |