1. 2/3:x=1/2:3/8 2. 3/4x-(1-80%)x=1.05 解
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/09 20:12:03
![1. 2/3:x=1/2:3/8 2. 3/4x-(1-80%)x=1.05 解](/uploads/image/z/1258219-19-9.jpg?t=1.+2%2F3%EF%BC%9Ax%3D1%2F2%3A3%2F8+2.+3%2F4x-%281-80%25%29x%3D1.05+%E8%A7%A3)
x)3S07~gVI&PBT6IEi/!4b[@@QӁ6A@`QMMF@qC}Sd1CS H" ن6yv i
1. 2/3:x=1/2:3/8 2. 3/4x-(1-80%)x=1.05 解
1. 2/3:x=1/2:3/8 2. 3/4x-(1-80%)x=1.05 解
1. 2/3:x=1/2:3/8 2. 3/4x-(1-80%)x=1.05 解
2/3:x=1/2:3/8
2/3:x=1/2×8/3
2/3:x=4/3
x=2/3÷4/3
x=2/3×3/4
x=1/2
3/4x-(1-80%)x=1.05
3/4x-(1-4/5)x=21/20
3/4x-1/5x=21/20
15/20x-4/20x=21/20
11/20x=21/20
x=21/11