(()+ 0.25)÷3.5ⅹ4.8÷0.8=1.2?

2025-06-28 14:51:13
推荐回答(3个)
回答1:

解:依题意得方程,
(x+0.25)÷3.5×4.8÷0.8=1.2
x+0.25=1.2×0.8÷4.8×3.5
x+0.25=0.7
x=0.7-0.25
x=0.45
即(0.45+0.25)÷3.5×4.8÷0.8=1.2

回答2:

(()+0.25)÷3.5×4.8÷0.8=1.2
(()+0.25)÷3.5×4.8=1.2×0.8
(()+0.25)÷3.5×4.8=0.96
(()+0.25)÷3.5=0.96÷4.8
(()+0.25)÷3.5=0.2
()+0.25=0.2×3.5
()+0.25=0.7
()=0.7-0.25
()=0.45

回答3:

(()+0.25)÷3.5×4.8÷0.8=1.2
(()+0.25)÷21=1.2
()+0.25=25.2
()=24.95