问题
解答题
25%x=75 60%x-35%x=125
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答案
(1)25%x=75,
25%x÷25%=75÷25%,
x=300,
(2)60%x-35%x=125,
25%x=125,
25%x÷25%=125÷25%,
x=500,
(3)
x+1 4
x=3.5,1 3
x=3.5,7 12
x×7 12
=3.5×12 7
,12 7
x=6.
25%x=75 60%x-35%x=125
|
(1)25%x=75,
25%x÷25%=75÷25%,
x=300,
(2)60%x-35%x=125,
25%x=125,
25%x÷25%=125÷25%,
x=500,
(3)
x+1 4
x=3.5,1 3
x=3.5,7 12
x×7 12
=3.5×12 7
,12 7
x=6.