查人人中国名人网我不做大哥好多年演员:Math!!!!!Math~~~~
来源：百度文库 编辑：查人人中国名人网 时间：2024/05/15 05:34:09
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%