[要有过程](0.75*42.7+57.3-0.573*25)/3*7972=看了问题不回答的是神经病 >
来源:学生作业学帮网 编辑:学帮网 时间:2024/06/28 22:02:57
[要有过程]
(0.75*42.7+57.3-0.573*25)/3*7972
=
看了问题不回答的是神经病 >
(0.75*42.7+57.3-0.573*25)/3*7972
=(0.75*42.7+57.3*1-57.3*0.25)/3*7972
=[0.75*42.7+57.3(1-0.25)]/3*7972
=[0.75*42.7+57.3*0.75]/3*7972
=[(42.7+57.3)*0.75]/3*7972
=75/3*7972
=25*7972
=199300
无聊吧