翻译*数学

来源:百度知道 编辑:UC知道 时间:2024/09/21 12:41:07
Saturday, March 28

Read the following SAT test question, then click on a button to select your answer.

In an 8-gram solution of water and alcohol, the ratio by mass of water to alcohol is 3 to 1. If 12 grams of a solution consisting of 2 grams water for each gram of alcohol is added to the 8-gram solution, what fraction by mass of the new solution is alcohol?

周六 3月28日
读下面的问题,然后点击按钮选择你的答案。
在8g水和酒精溶液中,水和酒精的质量比为3:1。如果12g水和酒精质量比为2:1的溶液加入8g溶液中,新溶液中酒精的质量分数为多少?