求未知数X:1.6×X=3.28 X÷0.18=...

求未知数X:1.6×X=3.28 X÷0.18=8.45 1.26÷X=28.
2025-06-27 03:02:00
推荐回答(1个)
回答1:

(1)1.6×X=3.28,
   1.6×X÷1.6=3.28÷1.6,
             x=2.05;
                    
(2)X÷0.18=8.45,
X÷0.18×0.18=8.45×0.18,
            x=1.521;
             
(3)1.26÷X=28,
  1.26÷X×X=28X,
     28X÷28=1.26÷28,
           X=0.045.