问题
解答题
求未知数x.
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答案
(1)60:x=3.2:0.8,
3.2x=60×0.8,
3.2x=48,
3.2x÷3.2=48÷3.2,
x=15;
(2)8:13=20:x,
8x=13×20,
8x=260,
8x÷8=260÷8,
x=32.5.
求未知数x.
|
(1)60:x=3.2:0.8,
3.2x=60×0.8,
3.2x=48,
3.2x÷3.2=48÷3.2,
x=15;
(2)8:13=20:x,
8x=13×20,
8x=260,
8x÷8=260÷8,
x=32.5.