84又4/119*1.375+105又5/119*0.9= 84又4/119*1.375+105又5/119*0.9=
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/29 22:33:52
![84又4/119*1.375+105又5/119*0.9= 84又4/119*1.375+105又5/119*0.9=](/uploads/image/z/55473-33-3.jpg?t=84%E5%8F%884%2F119%2A1.375%2B105%E5%8F%885%2F119%2A0.9%3D+84%E5%8F%884%2F119%2A1.375%2B105%E5%8F%885%2F119%2A0.9%3D)
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84又4/119*1.375+105又5/119*0.9= 84又4/119*1.375+105又5/119*0.9=
84又4/119*1.375+105又5/119*0.9=
84又4/119*1.375+105又5/119*0.9=
84又4/119*1.375+105又5/119*0.9= 84又4/119*1.375+105又5/119*0.9=
原式=(84+4/119)*1.375+(105+5/119)*0.9=84*`1.375+105*0.9+(4*1.375+4.5)/119
=84*(1+3/8)+94.5+9/119
=84+21*3/2+94.5+9/119
=210又9/119