问题
解答题
解比例.
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答案
(1)
:16 3
=2 5
:x,16 7
x=16 3
×2 5
,16 7
x÷16 3
=16 3
÷32 35
,16 3
x=
;6 35
(2)X:8=0.125:0.25,
0.25x=8×0.125,
0.25x÷0.25=1÷0.25,
x=4;
(3)
=1.8 x
,2 5
2x=1.8×5,
2x÷2=9÷2,
x=4.5;
(4)
=4.8 0.6
,x 12
0.6x=4.8×12,
0.6x÷0.6=57.6÷0.6,
x=96.