最新提问
我的动态
登录后查看动态
题目内容双击单词支持查询和收藏哦～
N copies of a certain health magazine cost a total of $64.
R copies of a certain news magazine cost a total of $80.
R copies of a certain news magazine cost a total of $80.
Quantity A
The ratio of the cost of 1 of the health magazines to the cost of 1 of the news magazines
Quantity B
$$\frac{4}{5}$$
D显示答案
· 相关考点
2.1.4 比例及相关应用题
2.1.4 比例及相关应用题
以上解析由 考满分老师提供。
