问题
解答题
求未知数X. (1)
(2)7.2:6=2.4:X. |
答案
(1)
X=0.9,3 4
X÷3 4
=0.9÷3 4
,3 4
X=0.9×
,4 3
X=1.2;
(2)7.2:6=2.4:X.
7.2X=6×2.4,
7.2X÷7.2=14.4÷7.2,,
X=2.
求未知数X. (1)
(2)7.2:6=2.4:X. |
(1)
X=0.9,3 4
X÷3 4
=0.9÷3 4
,3 4
X=0.9×
,4 3
X=1.2;
(2)7.2:6=2.4:X.
7.2X=6×2.4,
7.2X÷7.2=14.4÷7.2,,
X=2.