问题
解答题
解方程 (1)0.8:x=
(2)(
|
答案
(1)0.8:x=
:0.2,4 3
x=0.8×0.2,4 3
x÷4 3
=0.16÷4 3
,4 3
x=0.12;
(2)(
x+0.33)÷1 4
=0.134,1 5
(
x+0.33)÷1 4
×1 5
=0.134×1 5
,1 5
x+0.33-0.33=0.0268+0.33,1 4
x÷1 4
=0.3568÷1 4
,1 4
x=1.4272.