问题
解答题
求未知数x
x:50=1.5:5. |
答案
(1)
+7 10
x=1,3 10
+7 10
x-3 10
=1-7 10
,7 10
x÷3 10
=3 10
÷3 10
,3 10
x=1;
(2)x:50=1.5:5,
5x=50×1.5,
5x÷5=75÷5,
x=15.
求未知数x
x:50=1.5:5. |
(1)
+7 10
x=1,3 10
+7 10
x-3 10
=1-7 10
,7 10
x÷3 10
=3 10
÷3 10
,3 10
x=1;
(2)x:50=1.5:5,
5x=50×1.5,
5x÷5=75÷5,
x=15.