问题
解答题
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答案
(1)8:30=24:x
8x=30×24,
x=90;
(2)
:2 3
=x:95 6
x=5 6
×9,2 3
x=
;36 5
(3)3:x=9:15
9x=3×15,
x=5;
(4)1.25:0.25=x:1.6
0.25x=1.25×1.6,
x=8;
(5)
=x 9 0.8 4.5
4.5x=9×0.8,
x=1.6;
(6)
:1 3
=1 4
:x1 5
x=1 3
×1 4
,1 5
x=
.3 20