问题
解答题
解方程或比例:
3/5x+0.8=5.61.4:x=1:0.75.
答案
x+0.8=5.6,3 5
x+0.8-0.8=5.6-0.8,3 5
x=4.8,3 5
x×3 5
=4.8×5 3
,5 3
x=8.
1.4:x=1:0.75,
x=1.4×0.75,
x=1.05.
解方程或比例:
3/5x+0.8=5.61.4:x=1:0.75.
x+0.8=5.6,3 5
x+0.8-0.8=5.6-0.8,3 5
x=4.8,3 5
x×3 5
=4.8×5 3
,5 3
x=8.
1.4:x=1:0.75,
x=1.4×0.75,
x=1.05.