1. (2100-525)/75 =1575/75 =21(袋) 2100/21=100(千克/袋).大米 525/21=25(千克/袋).面粉 2. 44*0.44=19.36 19.36/(55-44) =19.36/11 =1.76(米).乙铁环长度 1.76*55=96.8(米)
记得采纳啊
1. (2100-525)/75 =1575/75 =21(袋) 2100/21=100(千克/袋).大米 525/21=25(千克/袋).面粉 2. 44*0.44=19.36 19.36/(55-44) =19.36/11 =1.76(米).乙铁环长度 1.76*55=96.8(米)
记得采纳啊