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解方程或比例:x:38=23:4x9=0.84.514X+15×45=12.

题目详情
解方程或比例:
x:
3
8
=
2
3
:4
x
9
=
0.8
4.5
1
4
X+
1
5
×45=12 .
解方程或比例:
x:
3
8
=
2
3
:4
x
9
=
0.8
4.5
1
4
X+
1
5
×45=12 .
解方程或比例:
x:
3
8
=
2
3
:4
x
9
=
0.8
4.5
1
4
X+
1
5
×45=12 .
解方程或比例:
x:
3
8
=
2
3
:4
x
9
=
0.8
4.5
1
4
X+
1
5
×45=12 .
解方程或比例:
x:
3
8
=
2
3
:4
x
9
=
0.8
4.5
1
4
X+
1
5
×45=12 .
x:
3
8
=
2
3
:4
x
9
=
0.8
4.5
1
4
X+
1
5
×45=12 .
x:
3
8
=
2
3
:4
x
9
=
0.8
4.5
1
4
X+
1
5
×45=12 .
x:
3
8
=
2
3
:4
x
9
=
0.8
4.5
1
4
X+
1
5
×45=12 .
x:
3
8
=
2
3
:4
3
8
=
2
3
:4
3
8
3 8 3 3 8 8
2
3
:4
2
3
2 3 2 2 3 3
x
9
=
0.8
4.5
x
9
=
0.8
4.5
x
9
x 9 x x 9 9
0.8
4.5
0.8
4.5
0.8 4.5 0.8 0.8 4.5 4.5
1
4
X+
1
5
×45=12 .
1
4
X+
1
5
×45=12 .
1
4
1 4 1 1 4 4
1
5
1 5 1 1 5 5
▼优质解答
答案和解析
χ: 3 8 = 2 3 :4        4x= 3 8 × 2 3     4x= 1 4      x= 1 ...