作业帮[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：学生作业帮助网 编辑：作业帮 时间：2024/08/16 23:47:07
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[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 >
[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 >
[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