浙江省舟山市天气:Math!!!!!Math~~~~
来源：百度文库 编辑：高校问答 时间：2024/05/28 00:48:33
SHURGRO fertilizer contains 18% ammonia plus carbon compounds. If 80% of the ammonia contains the chemical element nitrogen, what percent of this fertilizer is nitrogen?
18%*80%=14.4%