题目内容
求未知数
0.16÷(x?1
)=1
÷2.7
?20%=2
:(x+0.3)
0.16÷(x?1
| 24 |
| 25 |
| 7 |
| 20 |
| 1 |
| 2 |
| 1 |
| 4 |
(1)0.16÷(x?1
)=1
÷2.7,
0.16÷(x?1
)×1
x=
×1
x,
0.16=0.98x,
0.16÷0.98=0.98x÷0.98,
x=
;
(2)
:20%=2
:(x+0.3),
×(x+0.3)=20%×2
,
x+
=
,
x+
-
=
-
,
x÷
=
÷
,
x=
.
| 24 |
| 25 |
| 7 |
| 20 |
0.16÷(x?1
| 24 |
| 25 |
| 24 |
| 25 |
| 1 |
| 2 |
| 24 |
| 25 |
0.16=0.98x,
0.16÷0.98=0.98x÷0.98,
x=
| 8 |
| 49 |
(2)
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 2 |
| 3 |
| 20 |
| 9 |
| 20 |
| 1 |
| 2 |
| 3 |
| 20 |
| 3 |
| 20 |
| 9 |
| 20 |
| 3 |
| 20 |
| 1 |
| 2 |
| 1 |
| 2 |
| 3 |
| 10 |
| 1 |
| 2 |
x=
| 3 |
| 5 |
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