题目内容
解比例或解方程.
9:
=x:14
9:4.5=(x+6):8
:x=
:
x÷
=3.25×3.5.
9:
| 1 |
| 2 |
9:4.5=(x+6):8
| 1 |
| 8 |
| 1 |
| 10 |
| 1 |
| 3 |
x÷
| 6 |
| 13 |
(1)9:
=x:14,
x=9×14,
x×2=126×2,
x=252;
(2)9:4.5=(x+6):8
4.5×(x+6)=9×8,
4.5×(x+6)÷4.5=72÷4.5,
x+6-6=16-6,
x=10;
(3)
:x=
:
,
x=
×
,
x×10=
×10,
x=
,
(4)x÷
=3.25×3.5,
x÷
=11.375,
x÷
×
=11.375×
,
x=5.25.
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 2 |
x=252;
(2)9:4.5=(x+6):8
4.5×(x+6)=9×8,
4.5×(x+6)÷4.5=72÷4.5,
x+6-6=16-6,
x=10;
(3)
| 1 |
| 8 |
| 1 |
| 10 |
| 1 |
| 3 |
| 1 |
| 10 |
| 1 |
| 8 |
| 1 |
| 3 |
| 1 |
| 10 |
| 1 |
| 24 |
x=
| 5 |
| 12 |
(4)x÷
| 6 |
| 13 |
x÷
| 6 |
| 13 |
x÷
| 6 |
| 13 |
| 6 |
| 13 |
| 6 |
| 13 |
x=5.25.
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