问题
解答题
|
答案
(1)1.25:0.25=
,x 1.6
0.25x=1.25×1.6,
0.25x÷0.25=2÷0.25,
x=8;
(2)
=1.2 2.5
,3 x
1.2x=2.5×3,
1.2x÷1.2=7.5÷1.2,
x=6.25;
(3)
:x=3:12,3 4
3x=12×
,3 4
3x÷3=9÷3,
x=3.
|
(1)1.25:0.25=
,x 1.6
0.25x=1.25×1.6,
0.25x÷0.25=2÷0.25,
x=8;
(2)
=1.2 2.5
,3 x
1.2x=2.5×3,
1.2x÷1.2=7.5÷1.2,
x=6.25;
(3)
:x=3:12,3 4
3x=12×
,3 4
3x÷3=9÷3,
x=3.